Code Snippet – Page 3

Best Of WordPress Snippet Part Six

On November 7, 2014

How To Show Images In WordPress Simple Fields Plugin

The following snippet will let you show images in WordPress simple fields plugin.

?php
$image_id = get_post_meta(get_the_ID(), "your-id-here", true, 2);
$img_src = wp_get_attachment_url($image_id, 'thumbnail');
?>
<img src="<?php echo $img_src ?>" alt="An image" />

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?php

$image_id = get_post_meta(get_the_ID(), "your-id-here", true, 2);

$img_src = wp_get_attachment_url($image_id, 'thumbnail');

?>

<img src="<?php echo $img_src ?>" alt="An image" />

How To Show Repeatable Region In WordPress Simple Fields Plugin

The following snippet will let you see repeatable region in WordPress simple fields plugin.

<?php 
				$childPagesRepeatedGroup = simple_fields_get_post_group_values(get_the_id(),"Child Pages", true, 2); 
				if ( isset($childPagesRepeatedGroup) && count($childPagesRepeatedGroup) > 0 ) { 
					foreach ( $childPagesRepeatedGroup as $childPage ) { 
						$imageSource = wp_get_attachment_image_src($childPage['Pic']);
			?> 
            <div class="child-links">
   <img src="<?php print $imageSource[0]; ?>" width="<?php print $imageSource[1]; ?>" height="<?php print $imageSource[2]; ?>" />
               <h2><?php print $childPage['Heading']; ?></h2>
               <p><?php print $childPage['Text']; ?></p>
           </div> 
			<?php 
					}
			?>

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<?php

$childPagesRepeatedGroup = simple_fields_get_post_group_values(get_the_id(),"Child Pages", true, 2);

if ( isset($childPagesRepeatedGroup) && count($childPagesRepeatedGroup) > 0 ) {

foreach ( $childPagesRepeatedGroup as $childPage ) {

$imageSource = wp_get_attachment_image_src($childPage['Pic']);

?>

<img src="<?php print $imageSource[0]; ?>" width="<?php print $imageSource[1]; ?>" height="<?php print $imageSource[2]; ?>" />

</div>

<?php

}

?>

How To Show Specific Post And Page In WordPress

The following snippet will let you show specific post and page in WordPress.

<?php 
/**
* put the following into functions.php
**/
function new_wp_trim_excerpt($text) {
	$raw_excerpt = $text;
	if ( '' == $text ) {
		$text = get_the_content(''); 
		$text = strip_shortcodes( $text ); 
		$text = apply_filters('the_content', $text);
		$text = str_replace(']]>', ']]>', $text);
		$text = strip_tags($text, '<a>');
		$excerpt_length = apply_filters('excerpt_length', 55); 
		$excerpt_more = apply_filters('excerpt_more', ' ' . '[...]');
		$words = preg_split('/(<a.*?a>)|\n|\r|\t|\s/', $text, $excerpt_length + 1, PREG_SPLIT_NO_EMPTY|PREG_SPLIT_DELIM_CAPTURE );
		if ( count($words) > $excerpt_length ) {
			array_pop($words);
			$text = implode(' ', $words);
			$text = $text . $excerpt_more;
		} else {
			$text = implode(' ', $words);
		}
	}
	return apply_filters('new_wp_trim_excerpt', $text, $raw_excerpt); 
}
remove_filter('get_the_excerpt', 'wp_trim_excerpt');
add_filter('get_the_excerpt', 'new_wp_trim_excerpt'); 
function my_excerpt($excerpt = '', $excerpt_length = 50, $readmore = "Read more&raquo;", $tags = '<a>', $permalink = null) {
	global $post;
	$excerpt = strip_tags($excerpt, $tags);
	$excerpt = strip_shortcodes($excerpt);
	$string_check = explode(' ', $excerpt);
	if ($permalink === null) {
		$permalink = get_permalink();
	} 
	if (count($string_check, COUNT_RECURSIVE) > $excerpt_length) {
		$new_excerpt_words = explode(' ', $excerpt, $excerpt_length+1);
		array_pop($new_excerpt_words);
		$excerpt_text = implode(' ', $new_excerpt_words);
		$temp_content = strip_tags($excerpt_text, $tags);
		$short_content = preg_replace('|\[(.+?)\](.+?\[/\\1\])?|s','',$temp_content);
		$short_content .= '... <a href="' . $permalink . '">' . $readmore . '</a>';
		return $short_content;
	} else {
		return $excerpt . ' <a href="' . $permalink . '">' . $readmore . '</a>';
	}
} 
?> 
<?php 
/**
* put the following in your template and change the post id
**/
 
?>
 
<?php $my_post_id = 495; /* change this to match the post you are trying to retreive */ ?>
<?php $my_post = get_post($my_post_id); ?>
 
<h2><?php echo $my_post->post_title; ?></h2>
 
<?php $my_content = str_replace(']]>', ']]&gt;', apply_filters('the_content', $my_post->post_content)); ?>
 
<!-- this will output the content in excerpt format. change the '80' to whatever length you want. -->
<p><?php echo my_excerpt($my_content, 80, 'Read more&raquo;', '<a>', get_permalink($my_post_id) ); ?></p> 
<!-- this will output all of the content from that post/page -->
<?php echo $my_content; ?>

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<?php

/**

* put the following into functions.php

**/

function new_wp_trim_excerpt($text) {

$raw_excerpt = $text;

if ( '' == $text ) {

$text = get_the_content('');

$text = strip_shortcodes( $text );

$text = apply_filters('the_content', $text);

$text = str_replace(']]>', ']]>', $text);

$text = strip_tags($text, '<a>');

$excerpt_length = apply_filters('excerpt_length', 55);

$excerpt_more = apply_filters('excerpt_more', ' ' . '[...]');

$words = preg_split('/(<a.*?a>)|\n|\r|\t|\s/', $text, $excerpt_length + 1, PREG_SPLIT_NO_EMPTY|PREG_SPLIT_DELIM_CAPTURE );

if ( count($words) > $excerpt_length ) {

array_pop($words);

$text = implode(' ', $words);

$text = $text . $excerpt_more;

} else {

$text = implode(' ', $words);

}

return apply_filters('new_wp_trim_excerpt', $text, $raw_excerpt);

}

remove_filter('get_the_excerpt', 'wp_trim_excerpt');

add_filter('get_the_excerpt', 'new_wp_trim_excerpt');

function my_excerpt($excerpt = '', $excerpt_length = 50, $readmore = "Read more»", $tags = '<a>', $permalink = null) {

global $post;

$excerpt = strip_tags($excerpt, $tags);

$excerpt = strip_shortcodes($excerpt);

$string_check = explode(' ', $excerpt);

if ($permalink === null) {

$permalink = get_permalink();

}

if (count($string_check, COUNT_RECURSIVE) > $excerpt_length) {

$new_excerpt_words = explode(' ', $excerpt, $excerpt_length+1);

array_pop($new_excerpt_words);

$excerpt_text = implode(' ', $new_excerpt_words);

$temp_content = strip_tags($excerpt_text, $tags);

$short_content = preg_replace('|\[(.+?)\](.+?\[/\\1\])?|s','',$temp_content);

$short_content .= '... <a href="' . $permalink . '">' . $readmore . '</a>';

return $short_content;

} else {

return $excerpt . ' <a href="' . $permalink . '">' . $readmore . '</a>';

}

?>

<?php

/**

* put the following in your template and change the post id

**/

?>

<?php $my_post_id = 495; /* change this to match the post you are trying to retreive */ ?>

<?php $my_post = get_post($my_post_id); ?>

<h2><?php echo $my_post->post_title; ?></h2>

<?php $my_content = str_replace(']]>', ']]>', apply_filters('the_content', $my_post->post_content)); ?>

<p><?php echo my_excerpt($my_content, 80, 'Read more»', '<a>', get_permalink($my_post_id) ); ?></p>

<?php echo $my_content; ?>

How To Solve Multiple Loops Problem In WordPress

The following snippet will let you solve multiple loops problem in WordPress.

<?php  wp_reset_query(); ?>

1	<?php wp_reset_query(); ?>

How To Speed Up Your WordPress

The following snippet will let you speed up your WordPress by placing the following in the .htaccess file, replacing the standard WordPress .htaccess code.

# BEGIN WordPress
RewriteEngine on
#
# Unless you have set a different RewriteBase preceding this
# point, you may delete or comment-out the following
# RewriteBase directive:
RewriteBase /
#
# if this request is for "/" or has already been rewritten to WP
RewriteCond $1 ^(index\.php)?$ [OR]
# or if request is for image, css, or js file
RewriteCond $1 \.(gif|jpg|css|js|ico)$ [NC,OR]
# or if URL resolves to existing file
RewriteCond %{REQUEST_FILENAME} -f [OR]
# or if URL resolves to existing directory
RewriteCond %{REQUEST_FILENAME} -d
# then skip the rewrite to WP
RewriteRule ^(.*)$ - [S=1]
# else rewrite the request to WP
RewriteRule . /index.php [L]
#
# END wordpress

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# BEGIN WordPress

RewriteEngine on

#

# Unless you have set a different RewriteBase preceding this

# point, you may delete or comment-out the following

# RewriteBase directive:

RewriteBase /

#

# if this request is for "/" or has already been rewritten to WP

RewriteCond $1 ^(index\.php)?$ [OR]

# or if request is for image, css, or js file

RewriteCond $1 \.(gif|jpg|css|js|ico)$ [NC,OR]

# or if URL resolves to existing file

RewriteCond %{REQUEST_FILENAME} -f [OR]

# or if URL resolves to existing directory

RewriteCond %{REQUEST_FILENAME} -d

# then skip the rewrite to WP

RewriteRule ^(.*)$ - [S=1]

# else rewrite the request to WP

RewriteRule . /index.php [L]

#

# END wordpress

Snippet Source/Credit: Canonicalseo.com

Best Of WordPress Snippet Part Five

By The Editorial Team

On November 3, 2014

In Snippets

How To Set Simple Embedding PDF Shortcode In WordPress

The following snippet will let you set simple embedding PDF shortcode in WordPress.

function viewpdf($attr, $url) {
    return '<iframe src="http://docs.google.com/viewer?url=' . $url . '&embedded=true" style="width:' .$attr['width']. '; height:' .$attr['height']. ';" frameborder="0">Your browser should support iFrame to view this PDF document</iframe>';
}
add_shortcode('embedpdf', 'viewpdf');

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function viewpdf($attr, $url) {

return '<iframe src="http://docs.google.com/viewer?url=' . $url . '&embedded=true" style="width:' .$attr['width']. '; height:' .$attr['height']. ';" frameborder="0">Your browser should support iFrame to view this PDF document</iframe>';

}

add_shortcode('embedpdf', 'viewpdf');

Snippet Source/Credit: WPRecipes.com

How To Set Slug As String In WordPress

The following snippet will let you set slug as string in WordPress.

<?php
	$post_data = get_post($post->ID, ARRAY_A);
	$slug = $post_data['post_name'];
	echo $slug;
?>

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<?php

$post_data = get_post($post->ID, ARRAY_A);

$slug = $post_data['post_name'];

echo $slug;

?>

Snippet Source/Credit: insitewebsitedesign.com

How To Set WordPress Options As Value

The following snippet will let you set WordPress options as value.

<?php
  global $options;
  foreach ($options as $value) {
   if (get_settings( $value['id'] ) === FALSE) { $$value['id'] = $value['std']; } else { $$value['id'] = get_settings( $value['id'] ); }
  }
?>

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<?php

global $options;

foreach ($options as $value) {

if (get_settings( $value['id'] ) === FALSE) { $$value['id'] = $value['std']; } else { $$value['id'] = get_settings( $value['id'] ); }

}

?>

How To Set WordPress Post Expiration Code

The following snippet will let you set WordPress post expiration code.

<?php  //to check against expiration date; 
$timestamp = strtotime("now + 8 hours");  
$currentdate = date('YmdHis', $timestamp);
$expirationdate = get_post_custom_values('expiration');
if (is_null($expirationdate)) {	
  			$expirestring = '30005050235959'; //MAKE UN-EXPIRING POSTS ALWAYS SHOW UP;
} else {  
if (is_array($expirationdate)) {	
  						$expirestringarray = implode($expirationdate);	
						}
$markup = array("/",":"," ");
$expirestring = str_replace($markup,"",$expirestringarray);
} //else 
if (( $expirestring > $currentdate ) || (is_archive())) { ?>
<?php } //end if for expiration; ?>

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<?php //to check against expiration date;

$timestamp = strtotime("now + 8 hours");

$currentdate = date('YmdHis', $timestamp);

$expirationdate = get_post_custom_values('expiration');

if (is_null($expirationdate)) {

$expirestring = '30005050235959'; //MAKE UN-EXPIRING POSTS ALWAYS SHOW UP;

} else {

if (is_array($expirationdate)) {

$expirestringarray = implode($expirationdate);

}

$markup = array("/",":"," ");

$expirestring = str_replace($markup,"",$expirestringarray);

} //else

if (( $expirestring > $currentdate ) || (is_archive())) { ?>

<?php } //end if for expiration; ?>

Snippet Source/Credit: nrbet.com

How To Share Databases Between Two Domains In WordPress

The following snippet will let you share databases between two domains in WordPress.

Install the second WP as normal into the same database as the original with a DIFFERENT table prefix. Activate the theme you want to use. 
Now edit these files...  
In wp-config:  
define('CUSTOM_CAPABILITIES_PREFIX', 'wp_');
define('CUSTOM_USER_TABLE', 'wp_users');
define('CUSTOM_USER_META_TABLE', 'wp_usermeta'); 
In wp-includes/capabilities.php:
/**
	 * Set up capability object properties.
	 *
	 * Will set the value for the 'cap_key' property to current database table
	 * prefix, followed by 'capabilities'. Will then check to see if the
	 * property matching the 'cap_key' exists and is an array. If so, it will be
	 * used.
	 *
	 * @since 2.1.0
	 *
	 * @param string $cap_key Optional capability key
	 * @access protected
	 */
	function _init_caps( $cap_key = '' ) {
		global $wpdb;
		if ( empty($cap_key) )
			if (defined ('CUSTOM_CAPABILITIES_PREFIX')) {
    	  $this->cap_key = CUSTOM_CAPABILITIES_PREFIX . 'capabilities';
    	} else {	
        $this->cap_key = $wpdb->prefix . 'capabilities';
    	}
		else
			$this->cap_key = $cap_key;
		$this->caps = &$this->{$this->cap_key};
		if ( ! is_array( $this->caps ) )
			$this->caps = array();
		$this->get_role_caps();
	}
 
In the active theme's functions.php:
function table_prefix_switch() {
    global $wpdb;
    $options = $wpdb->options; //Save the site 2 options table
    $wpdb->set_prefix('wp_'); //The prefix to site 1
    $wpdb->options = $options; //Put the options table back
}
add_action('init', 'table_prefix_switch');
Install the second WP as normal into the same database as the original with a DIFFERENT table prefix. Activate the theme you want to use. 
Now edit these files...  
In wp-config:  
define('CUSTOM_CAPABILITIES_PREFIX', 'wp_');
define('CUSTOM_USER_TABLE', 'wp_users');
define('CUSTOM_USER_META_TABLE', 'wp_usermeta'); 
In wp-includes/capabilities.php:
/**
	 * Set up capability object properties.
	 *
	 * Will set the value for the 'cap_key' property to current database table
	 * prefix, followed by 'capabilities'. Will then check to see if the
	 * property matching the 'cap_key' exists and is an array. If so, it will be
	 * used.
	 *
	 * @since 2.1.0
	 *
	 * @param string $cap_key Optional capability key
	 * @access protected
	 */
	function _init_caps( $cap_key = '' ) {
		global $wpdb;
		if ( empty($cap_key) )
			if (defined ('CUSTOM_CAPABILITIES_PREFIX')) {
    	  $this->cap_key = CUSTOM_CAPABILITIES_PREFIX . 'capabilities';
    	} else {	
        $this->cap_key = $wpdb->prefix . 'capabilities';
    	}
		else
			$this->cap_key = $cap_key;
		$this->caps = &$this->{$this->cap_key};
		if ( ! is_array( $this->caps ) )
			$this->caps = array();
		$this->get_role_caps();
	}
 
In the active theme's functions.php:
function table_prefix_switch() {
    global $wpdb;
    $options = $wpdb->options; //Save the site 2 options table
    $wpdb->set_prefix('wp_'); //The prefix to site 1
    $wpdb->options = $options; //Put the options table back
}
add_action('init', 'table_prefix_switch');

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Install the second WP as normal into the same database as the original with a DIFFERENT table prefix. Activate the theme you want to use.

Now edit these files...

In wp-config:

define('CUSTOM_CAPABILITIES_PREFIX', 'wp_');

define('CUSTOM_USER_TABLE', 'wp_users');

define('CUSTOM_USER_META_TABLE', 'wp_usermeta');

In wp-includes/capabilities.php:

/**

* Set up capability object properties.

*

* Will set the value for the 'cap_key' property to current database table

* prefix, followed by 'capabilities'. Will then check to see if the

* property matching the 'cap_key' exists and is an array. If so, it will be

* used.

*

* @since 2.1.0

*

* @param string $cap_key Optional capability key

* @access protected

*/

function _init_caps( $cap_key = '' ) {

global $wpdb;

if ( empty($cap_key) )

if (defined ('CUSTOM_CAPABILITIES_PREFIX')) {

$this->cap_key = CUSTOM_CAPABILITIES_PREFIX . 'capabilities';

} else {

$this->cap_key = $wpdb->prefix . 'capabilities';

}

else

$this->cap_key = $cap_key;

$this->caps = &$this->{$this->cap_key};

if ( ! is_array( $this->caps ) )

$this->caps = array();

$this->get_role_caps();

}

In the active theme's functions.php:

function table_prefix_switch() {

global $wpdb;

$options = $wpdb->options; //Save the site 2 options table

$wpdb->set_prefix('wp_'); //The prefix to site 1

$wpdb->options = $options; //Put the options table back

}

add_action('init', 'table_prefix_switch');

Install the second WP as normal into the same database as the original with a DIFFERENT table prefix. Activate the theme you want to use.

Now edit these files...

In wp-config:

define('CUSTOM_CAPABILITIES_PREFIX', 'wp_');

define('CUSTOM_USER_TABLE', 'wp_users');

define('CUSTOM_USER_META_TABLE', 'wp_usermeta');

In wp-includes/capabilities.php:

/**

* Set up capability object properties.

*

* Will set the value for the 'cap_key' property to current database table

* prefix, followed by 'capabilities'. Will then check to see if the

* property matching the 'cap_key' exists and is an array. If so, it will be

* used.

*

* @since 2.1.0

*

* @param string $cap_key Optional capability key

* @access protected

*/

function _init_caps( $cap_key = '' ) {

global $wpdb;

if ( empty($cap_key) )

if (defined ('CUSTOM_CAPABILITIES_PREFIX')) {

$this->cap_key = CUSTOM_CAPABILITIES_PREFIX . 'capabilities';

} else {

$this->cap_key = $wpdb->prefix . 'capabilities';

}

else

$this->cap_key = $cap_key;

$this->caps = &$this->{$this->cap_key};

if ( ! is_array( $this->caps ) )

$this->caps = array();

$this->get_role_caps();

}

In the active theme's functions.php:

function table_prefix_switch() {

global $wpdb;

$options = $wpdb->options; //Save the site 2 options table

$wpdb->set_prefix('wp_'); //The prefix to site 1

$wpdb->options = $options; //Put the options table back

}

add_action('init', 'table_prefix_switch');

Snippet Source/Credit: WordPress.org

Best Of WordPress Snippet Part Four

By The Editorial Team

On October 28, 2014

In Snippets

How To Reverse Highlight With jQuery In WordPress

The following snippet will let you reverse highlight with jQuery in WordPress.

jQuery(document).ready (function() {
		jQuery("li.menu-item > a").hover(
		  function () {
		    jQuery(".menu-item > a").not(this).animate({
    			opacity: .5
  			}, 0, 'linear', function() {
  			});
		  },
		  function () {
		    jQuery(".menu-item > a").animate({
		    	opacity: 1.0
		    })
		  }
		);
	});

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jQuery(document).ready (function() {

jQuery("li.menu-item > a").hover(

function () {

jQuery(".menu-item > a").not(this).animate({

opacity: .5

}, 0, 'linear', function() {

});

},

function () {

jQuery(".menu-item > a").animate({

opacity: 1.0

})

}

);

});

How To Set Basic Tag Cloud In WordPress

The following line of code will let you set basic tag cloud in WordPress.

<?php wp_tag_cloud('smallest=8&largest=16&'); ?>

1	<?php wp_tag_cloud('smallest=8&largest=16&'); ?>

How To Set Default Editor In WordPress

Adding the following snippet to your theme’s functions.php file will let you set default editor in WordPress.

# This sets the Visual Editor as default #
add_filter( 'wp_default_editor', create_function('', 'return "tinymce";') );
# This sets the HTML Editor as default #
add_filter( 'wp_default_editor', create_function('', 'return "html";') );

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# This sets the Visual Editor as default #

add_filter( 'wp_default_editor', create_function('', 'return "tinymce";') );

# This sets the HTML Editor as default #

add_filter( 'wp_default_editor', create_function('', 'return "html";') );

How To Set Login And Password In WordPress

The following snippet will let you set login and password in WordPress.

<div id="barra-login"> 
        <p> 
     <?php global $user_ID; if ( $user_ID ) : ?> 
<?php global $current_user; get_currentuserinfo(); ?>
        <?php
if( !empty($current_user->display_name) ){
$nome = $current_user->display_name;
} elseif( !empty($current_user->first_name) && !empty($current_user->last_name) ){
$nome = $current_user->first_name." ".$current_user->last_name;
} else {
$nome = $current_user->user_login;
}
?>
Welcome, <strong><?php echo $nome; ?></strong>
           [ <a href="<?php echo get_option('home')?>/painel/">My Dashboard</a> | <a href="<?php echo wp_logout_url( htmlentities(get_option('home')) ); ?>" title="Logout">Logout</a> ] 
       <?php else : ?> 
           <strong>Welcome Visitor!</strong> [ <a href="<?php echo get_option('siteurl'); ?>/wp-login.php?action=register&amp;redirect_to=<?php echo get_option('home')?>/my-information/">Join us</a> | <a href="<?php echo get_option('siteurl'); ?>/wp-login.php">Log</a> ] 
<?php endif; ?> 
        </p> 
    </div>

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<p>

<?php global $user_ID; if ( $user_ID ) : ?>

<?php global $current_user; get_currentuserinfo(); ?>

<?php

if( !empty($current_user->display_name) ){

$nome = $current_user->display_name;

} elseif( !empty($current_user->first_name) && !empty($current_user->last_name) ){

$nome = $current_user->first_name." ".$current_user->last_name;

} else {

$nome = $current_user->user_login;

}

?>

Welcome, <strong><?php echo $nome; ?></strong>

[ <a href="<?php echo get_option('home')?>/painel/">My Dashboard</a> | <a href="<?php echo wp_logout_url( htmlentities(get_option('home')) ); ?>" title="Logout">Logout</a> ]

<?php else : ?>

<strong>Welcome Visitor!</strong> [ <a href="<?php echo get_option('siteurl'); ?>/wp-login.php?action=register&redirect_to=<?php echo get_option('home')?>/my-information/">Join us</a> | <a href="<?php echo get_option('siteurl'); ?>/wp-login.php">Log</a> ]

<?php endif; ?>

</p>

</div>

How To Set Role And Capabilities In WordPress

The following snippet will let you set role and capabilities in WordPress.

Add this capabilities for every custom post type.

[edit_post]          => "edit_{$capability_type}"
[read_post]          => "read_{$capability_type}"
[delete_post]          => "delete_{$capability_type}"
[edit_posts]          => "edit_{$capability_type}s"
[edit_others_posts]     => "edit_others_{$capability_type}s"
[publish_posts]          => "publish_{$capability_type}s"
[read_private_posts]     => "read_private_{$capability_type}s"
[delete_posts]           => "delete_{$capability_type}s"
[delete_private_posts]   => "delete_private_{$capability_type}s"
[delete_published_posts] => "delete_published_{$capability_type}s"
[delete_others_posts]    => "delete_others_{$capability_type}s"
[edit_private_posts]     => "edit_private_{$capability_type}s"
[edit_published_posts]   => "edit_published_{$capability_type}s"
 
edit_members
read_members
delete_members
edit_memberss
edit_others_memberss
publish_memberss
read_private_memberss
delete_memberss
delete_private_memberss
delete_published_memberss
delete_others_memberss
edit_private_memberss
edit_published_memberss

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[edit_post] => "edit_{$capability_type}"

[read_post] => "read_{$capability_type}"

[delete_post] => "delete_{$capability_type}"

[edit_posts] => "edit_{$capability_type}s"

[edit_others_posts] => "edit_others_{$capability_type}s"

[publish_posts] => "publish_{$capability_type}s"

[read_private_posts] => "read_private_{$capability_type}s"

[delete_posts] => "delete_{$capability_type}s"

[delete_private_posts] => "delete_private_{$capability_type}s"

[delete_published_posts] => "delete_published_{$capability_type}s"

[delete_others_posts] => "delete_others_{$capability_type}s"

[edit_private_posts] => "edit_private_{$capability_type}s"

[edit_published_posts] => "edit_published_{$capability_type}s"

edit_members

read_members

delete_members

edit_memberss

edit_others_memberss

publish_memberss

read_private_memberss

delete_memberss

delete_private_memberss

delete_published_memberss

delete_others_memberss

edit_private_memberss

edit_published_memberss

Best Of WordPress Snippet Part Three

By The Editorial Team

On October 22, 2014

In Snippets

How To Get Rid Of Unused Post Revisions In WordPress

The following line of codes will let you get rid of unused post revisions in WordPress.

DELETE a,b,c
FROM wp_posts a
WHERE a.post_type = 'revision'
LEFT JOIN wp_term_relationships b
ON (a.ID = b.object_id)
LEFT JOIN wp_postmeta c ON (a.ID = c.post_id);

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DELETE a,b,c

FROM wp_posts a

WHERE a.post_type = 'revision'

LEFT JOIN wp_term_relationships b

ON (a.ID = b.object_id)

LEFT JOIN wp_postmeta c ON (a.ID = c.post_id);

Snippet Source/Credit: WPRecipes.com

How To Have CSS Minified In WordPress

The following snippet will let you have CSS minified in WordPress.

<?php
require('../../../wp-load.php');
function colorize($m){
	// Your code to get the new color goes here, in this case it's grabbing a stored value from a Wordpress plugin.
	$c=get_option('tc_'.$m[4]);
	$m[3] = $c;
	if($c!=''){
		return $c;
	}else{
		return $m[0];
	}
}
header("Content-type: text/css");
$css = file_get_contents('style.css');
$css = preg_replace('~/\*.*\*/|\n|\t|(?<=:)\s+|(?<={)\s+|(?<=})\s+|(?<=,)\s+|\s+(?=;)|\s+(?={)|\s+(?=})|\s+(?<=:)~sU','',preg_replace_callback('~((transparent|#[A-F0-9a-f]{6}))(?=(.)+(?=/\*#(.+)#\*/))~U','colorize',$css));
echo $css;
?> 
// example of the css before colorization, note the comment
element {
	padding: 0;
	margin: 0 10px;
	color: #000000;/*#c_t#*/
} 
// how it looks after colorization, note the color.
element {
	padding: 0;
	margin: 0 10px;
	color: #FF0000;
}
 
// older version, doesn't grab color codes as well, missing transparent keyword.
<?php
function colorize($v){
	//whatever code you use to turn variable $v into color $c, very dependent on your specific implementation.
	return $c;
}
header("Content-type: text/css");
$css = file_get_contents('style.css');
$css = preg_replace('~/\*.*\*/|\n|\t|(?<=:)\s+|(?<={)\s+|(?<=})\s+|(?<=,)\s+|\s+(?=;)|\s+(?={)|\s+(?=})~sU','',preg_replace_callback('~#[A-F0-9a-f]{3,8}(?=;/\*#([\d\w\s]+)(:(.+))?#\*/)~U','colorize',$css));
echo $css;
?>

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<?php

require('../../../wp-load.php');

function colorize($m){

// Your code to get the new color goes here, in this case it's grabbing a stored value from a Wordpress plugin.

$c=get_option('tc_'.$m[4]);

$m[3] = $c;

if($c!=''){

return $c;

}else{

return $m[0];

}

header("Content-type: text/css");

$css = file_get_contents('style.css');

$css = preg_replace('~/\*.*\*/|\n|\t|(?<=:)\s+|(?<={)\s+|(?<=})\s+|(?<=,)\s+|\s+(?=;)|\s+(?={)|\s+(?=})|\s+(?<=:)~sU','',preg_replace_callback('~((transparent|#[A-F0-9a-f]{6}))(?=(.)+(?=/\*#(.+)#\*/))~U','colorize',$css));

echo $css;

?>

// example of the css before colorization, note the comment

element {

padding: 0;

margin: 0 10px;

color: #000000;/*#c_t#*/

}

// how it looks after colorization, note the color.

element {

padding: 0;

margin: 0 10px;

color: #FF0000;

}

// older version, doesn't grab color codes as well, missing transparent keyword.

<?php

function colorize($v){

//whatever code you use to turn variable $v into color $c, very dependent on your specific implementation.

return $c;

}

header("Content-type: text/css");

$css = file_get_contents('style.css');

$css = preg_replace('~/\*.*\*/|\n|\t|(?<=:)\s+|(?<={)\s+|(?<=})\s+|(?<=,)\s+|\s+(?=;)|\s+(?={)|\s+(?=})~sU','',preg_replace_callback('~#[A-F0-9a-f]{3,8}(?=;/\*#([\d\w\s]+)(:(.+))?#\*/)~U','colorize',$css));

echo $css;

?>

Snippet Source/Credit: fatfolderdesign.com

How To Hide ‘Help’ Tab From WordPress Dashboard

The following snippet will let you hide “help” tab from WordPress dashboard.

function hide_help() {
    echo '<style type="text/css">
            #contextual-help-link-wrap { display: none !important; }
          </style>';
}
add_action('admin_head', 'hide_help');

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function hide_help() {

echo '<style type="text/css">

#contextual-help-link-wrap { display: none !important; }

</style>';

}

add_action('admin_head', 'hide_help');

Snippet Source/Credit: WP-Snippets.com

How To Increase Server Memory Limit In WP-Config.php

The following snippet will let you increase server memory limit in wp-config.php.

/**
	* Increase memory limit
	*/
define('WP_MEMORY_LIMIT', '256M');

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/**

* Increase memory limit

*/

define('WP_MEMORY_LIMIT', '256M');

How To Replace Theme’s Google Font With Your Own In WordPress

Using the following snippet will let you replace theme’s Google font with your own font in WordPress.

function add_fonts() {
	// Styles Format:  wp_enqueue_style($handle, $src, $deps, $ver, $media);
        wp_register_style('open-sans', 'http://fonts.googleapis.com/css?family=Bree+Serif:400,300,700', array(), false, 'all');
        wp_enqueue_style( 'open-sans');
}
add_action('wp_enqueue_scripts', 'add_fonts', 100);

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function add_fonts() {

// Styles Format: wp_enqueue_style($handle, $src, $deps, $ver, $media);

wp_register_style('open-sans', 'http://fonts.googleapis.com/css?family=Bree+Serif:400,300,700', array(), false, 'all');

wp_enqueue_style( 'open-sans');

}

add_action('wp_enqueue_scripts', 'add_fonts', 100);

Best Of WordPress Snippet Part Two

By The Editorial Team

On October 15, 2014

In Snippets

How To Define A Template In WordPress

The following lines of code will let you define a template in WordPress.

<?php
/*
Template Name: Snarfer
*/
?>

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<?php

/*

Template Name: Snarfer

*/

?>

Snippet Source/Credit: WordPress.org

How To Deregister All In One Event Calendar In WordPress

The following snippet will let you deregister all in one event calendar in WordPress.

// clean up unwanted JS scripts
function my_print_scripts(){
   if ( !is_admin() ) {
      wp_deregister_script('jquery');
      wp_deregister_script('ai1ec_requirejs');
   }
}
add_action('wp_print_scripts', 'my_print_scripts'); 
// clean up unwanted CSS
function my_print_css() {
   if ( !is_admin() ) {
      wp_deregister_style('ai1ec-general');
      wp_deregister_style('ai1ec-event');
      wp_deregister_style('ai1ec-calendar');
   }
}
add_action('wp_print_styles', 'my_print_css');

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// clean up unwanted JS scripts

function my_print_scripts(){

if ( !is_admin() ) {

wp_deregister_script('jquery');

wp_deregister_script('ai1ec_requirejs');

}

add_action('wp_print_scripts', 'my_print_scripts');

// clean up unwanted CSS

function my_print_css() {

if ( !is_admin() ) {

wp_deregister_style('ai1ec-general');

wp_deregister_style('ai1ec-event');

wp_deregister_style('ai1ec-calendar');

}

add_action('wp_print_styles', 'my_print_css');

Snippet Source/Credit: Ditscheri.com

How To Disable Sidebars And Widgets On Page Template In WordPress

The following snippet will let you disable sidebars and widgets on page template in WordPress.

<?php 
/* Disables widget areas. */
add_filter( 'sidebars_widgets', 'remove_sidebars' ); 
function remove_sidebars( $sidebars_widgets ) {
	global $wp_query; 
	if ( is_singular() ) {
		$template = get_post_meta( $wp_query->post->ID, "_wp_{$wp_query->post->post_type}_template", true ); 
		// Disables all widgets
		if ( preg_match("/(-no-widgets.php)$/i", $template ) )
			$sidebars_widgets = array( true ); 
		// Disables 'primary' & 'secondary' sidebars widgets
		if ( preg_match("/(-no-sidebars.php)$/i", $template ) )
			$sidebars_widgets['primary'] = false;
			$sidebars_widgets['secondary'] = false;
	} 
	return $sidebars_widgets;
} 
?>

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<?php

/* Disables widget areas. */

add_filter( 'sidebars_widgets', 'remove_sidebars' );

function remove_sidebars( $sidebars_widgets ) {

global $wp_query;

if ( is_singular() ) {

$template = get_post_meta( $wp_query->post->ID, "_wp_{$wp_query->post->post_type}_template", true );

// Disables all widgets

if ( preg_match("/(-no-widgets.php)$/i", $template ) )

$sidebars_widgets = array( true );

// Disables 'primary' & 'secondary' sidebars widgets

if ( preg_match("/(-no-sidebars.php)$/i", $template ) )

$sidebars_widgets['primary'] = false;

$sidebars_widgets['secondary'] = false;

}

return $sidebars_widgets;

}

?>

How To Echo Starting 20 Words Of Any Page In WordPress

The following snippet will let you echo starting 20 words of any page in WordPress.

<?php
	$my_id = 22; // change to relevant page ID
	$post_id_5369 = get_post($my_id);
	$content = $post_id_5369->post_content;
	$content = apply_filters('the_content', $content);
	$content = str_replace(']]>', ']]>', $content);
	$words = explode(' ', $content);
	$i = 0;
	while ($i <= 20) { 
		$short .= $words[$i] . ' ';
		$i++;
	}
		echo $short;
?>

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<?php

$my_id = 22; // change to relevant page ID

$post_id_5369 = get_post($my_id);

$content = $post_id_5369->post_content;

$content = apply_filters('the_content', $content);

$content = str_replace(']]>', ']]>', $content);

$words = explode(' ', $content);

$i = 0;

while ($i <= 20) {

$short .= $words[$i] . ' ';

$i++;

}

echo $short;

?>

How To Get Image Path Relevant To Theme In WordPress

The following snippet will let you get image path relevant to theme in WordPress.

<?php bloginfo('template_directory'); ?>/

1	<?php bloginfo('template_directory'); ?>/

Best Of WordPress Snippet Part One

By The Editorial Team

On October 10, 2014

In Snippets

How To Add Database For WordPress Admin Users

The following snippet will let you add database for WordPress admin users.

INSERT INTO `db_wordpress`.`wp_users` (`ID`, `user_login`, `user_pass`, `user_nicename`, `user_email`, `user_url`, `user_registered`, `user_activation_key`, `user_status`, `display_name`) VALUES (NULL, 'username', MD5('pass'), 'nicename', 'email', 'url', '2010-10-08 00:00:00', '', '0', 'displayname');
INSERT INTO `db_wordpress`.`wp_usermeta` (`umeta_id`, `user_id`, `meta_key`, `meta_value`) VALUES (NULL, 'id', 'wp_capabilities', 'a:1:{s:13:"administrator";b:1;}');
INSERT INTO `db_wordpress`.`wp_usermeta` (`umeta_id`, `user_id`, `meta_key`, `meta_value`) VALUES (NULL, 'id', 'wp_user_level', '10');

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INSERT INTO `db_wordpress`.`wp_users` (`ID`, `user_login`, `user_pass`, `user_nicename`, `user_email`, `user_url`, `user_registered`, `user_activation_key`, `user_status`, `display_name`) VALUES (NULL, 'username', MD5('pass'), 'nicename', 'email', 'url', '2010-10-08 00:00:00', '', '0', 'displayname');

INSERT INTO `db_wordpress`.`wp_usermeta` (`umeta_id`, `user_id`, `meta_key`, `meta_value`) VALUES (NULL, 'id', 'wp_capabilities', 'a:1:{s:13:"administrator";b:1;}');

INSERT INTO `db_wordpress`.`wp_usermeta` (`umeta_id`, `user_id`, `meta_key`, `meta_value`) VALUES (NULL, 'id', 'wp_user_level', '10');

Snippet Source/Credit: dnawebagency.com

How To Add JavaScript To A Post In WordPress

The following snippet will let you add JavaScript to a post in WordPress.

<? if( is_single() and
       $customjs = get_post_meta($post->ID, 'custom_js', true) )
   echo "<script src='".$customjs."' language='javascript'></script>";
?>

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<? if( is_single() and

$customjs = get_post_meta($post->ID, 'custom_js', true) )

echo "<script src='".$customjs."' language='javascript'></script>";

?>

Snippet Source/Credit: WordPress.org

How To Change Admin Email To New Users

Using the following snippet will let you change admin email to new users.

function admin_email_filter_wp_mail_from($email){
	/* start of code lifted from wordpress core, at http://svn.automattic.com/wordpress/tags/3.4/wp-includes/pluggable.php */
	$sitename = strtolower( $_SERVER['SERVER_NAME'] );
	if ( substr( $sitename, 0, 4 ) == 'www.' ) {
		$sitename = substr( $sitename, 4 );
	}
	/* end of code lifted from wordpress core */
	$myfront = "whateverIwant@";
	$myback = $sitename;
	$myfrom = $myfront . $myback;
	return $myfrom;
}
add_filter("wp_mail_from", "admin_email_filter_wp_mail_from");

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function admin_email_filter_wp_mail_from($email){

/* start of code lifted from wordpress core, at http://svn.automattic.com/wordpress/tags/3.4/wp-includes/pluggable.php */

$sitename = strtolower( $_SERVER['SERVER_NAME'] );

if ( substr( $sitename, 0, 4 ) == 'www.' ) {

$sitename = substr( $sitename, 4 );

}

/* end of code lifted from wordpress core */

$myfront = "whateverIwant@";

$myback = $sitename;

$myfrom = $myfront . $myback;

return $myfrom;

}

add_filter("wp_mail_from", "admin_email_filter_wp_mail_from");

Snippet Source/Credit: WPMUDev

How To Clean Dashboard Meta Boxes In WordPress

The following snippet will let you clean dashboard meta boxes in WordPress.

        remove_meta_box( 'dashboard_incoming_links', 'dashboard', 'normal' );
        remove_meta_box( 'dashboard_plugins', 'dashboard', 'normal' );
        remove_meta_box( 'dashboard_primary', 'dashboard', 'normal' );
        remove_meta_box( 'dashboard_secondary', 'dashboard', 'normal' );
        remove_meta_box( 'dashboard_incoming_links', 'dashboard', 'normal' );
        remove_meta_box( 'dashboard_quick_press', 'dashboard', 'side' );
        remove_meta_box( 'dashboard_recent_drafts', 'dashboard', 'side' );
        remove_meta_box( 'dashboard_recent_comments', 'dashboard', 'normal' );
        remove_meta_box( 'dashboard_right_now', 'dashboard', 'normal' );
        remove_meta_box( 'dashboard_activity', 'dashboard', 'normal' );
}
add_action( 'admin_init', 'remove_dashboard_meta' );

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remove_meta_box( 'dashboard_incoming_links', 'dashboard', 'normal' );

remove_meta_box( 'dashboard_plugins', 'dashboard', 'normal' );

remove_meta_box( 'dashboard_primary', 'dashboard', 'normal' );

remove_meta_box( 'dashboard_secondary', 'dashboard', 'normal' );

remove_meta_box( 'dashboard_incoming_links', 'dashboard', 'normal' );

remove_meta_box( 'dashboard_quick_press', 'dashboard', 'side' );

remove_meta_box( 'dashboard_recent_drafts', 'dashboard', 'side' );

remove_meta_box( 'dashboard_recent_comments', 'dashboard', 'normal' );

remove_meta_box( 'dashboard_right_now', 'dashboard', 'normal' );

remove_meta_box( 'dashboard_activity', 'dashboard', 'normal' );

}

add_action( 'admin_init', 'remove_dashboard_meta' );

Snippet Source/Credit: WordPress Codex

How To Customize WordPress WP-Admin Login Page

The following snippet will let you customize WordPress WP-admin login page.

function custom_loginlogo() {
echo '<style type="text/css">
h1 a {background-image: url('.get_bloginfo('template_directory').'/images/login_logo.png) !important; }
</style>';
}
add_action('login_head', 'custom_loginlogo'); 
<?php
add_filter( 'login_headerurl', 'custom_loginlogo_url' );
function custom_loginlogo_url($url) {
	return 'http://www.wpbeginner.com';
}
?>

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function custom_loginlogo() {

echo '<style type="text/css">

h1 a {background-image: url('.get_bloginfo('template_directory').'/images/login_logo.png) !important; }

</style>';

}

add_action('login_head', 'custom_loginlogo');

<?php

add_filter( 'login_headerurl', 'custom_loginlogo_url' );

function custom_loginlogo_url($url) {

return 'http://www.wpbeginner.com';

}

?>

The Best Of WordPress Snippets – Part 5

By The Editorial Team

On August 26, 2014

In Snippets

How To Schedule Events In Your WordPress Website

The following snippet will let you schedule events in your WordPress website.

if (!wp_next_scheduled('my_task_hook')) {
	wp_schedule_event( time(), 'hourly', 'my_task_hook' );
} 
add_action( 'my_task_hook', 'my_task_function' );  
function my_task_function() {
	wp_mail('you@yoursite.com', 'Automatic email', 'Hello, this is an automatically scheduled email from WordPress.');
}

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if (!wp_next_scheduled('my_task_hook')) {

wp_schedule_event( time(), 'hourly', 'my_task_hook' );

}

add_action( 'my_task_hook', 'my_task_function' );

function my_task_function() {

wp_mail('you@yoursite.com', 'Automatic email', 'Hello, this is an automatically scheduled email from WordPress.');

}

How To Show Posts For Category

You do turn selective one-to-many times in choosing the posts for category. While the thing can be achieved by manually but to ease the job, using the snippet below you can show posts for category as per the way you want.

/**
 * Show latest posts for category
 * 
 * @return 
 * @param object $cats
 * @param object $show[optional]
 */
function show_title_cat( $cats, $show=5 ) {
    global $post; 
    $posts = query_posts('cat=' . $cats . '&showposts=' . $show );
    echo "<ul>";
    foreach ($posts as $post ) : setup_postdata($post); ?>
        <li><a href="<?php the_permalink(); ?>" rel="bookmark"><?php the_title(); ?></a></li>
    <?php endforeach;
    echo "</ul>";
}

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/**

* Show latest posts for category

*

* @return

* @param object $cats

* @param object $show[optional]

*/

function show_title_cat( $cats, $show=5 ) {

global $post;

$posts = query_posts('cat=' . $cats . '&showposts=' . $show );

echo "<ul>";

foreach ($posts as $post ) : setup_postdata($post); ?>

<li><a href="<?php the_permalink(); ?>" rel="bookmark"><?php the_title(); ?></a></li>

<?php endforeach;

echo "</ul>";

}

Snippet Source/Credit: undolog.com

How To Automatically Create Greybox Imageset From Images Attached To Post

Using the following snippet you will be able to automatically create greybox imageset from images attached to post.

<!--Automatic Greybox-->
		<?php 
		//Die zum Post gehoerenden Bilder ins Array $images schreiben
		//Put images from post in to array $images. Order by menu order defined in post gallery
		$images = get_children( array('post_parent' => $post->ID, 'post_status' => 'inherit', 'post_type' => 'attachment', 'post_mime_type' => 'image', 'order' => 'ASC', 'orderby' => 'menu_order ID') ); 
		//Pruefen, ob dem Beitrag Bilder angehaengt wurden.
		//check if there are any images attached to the post
		if (isset($images))
		{
				//Den Zaehler auf 0 setzen
				//set counter to 0
				$count=0;	
				//Alle Bilder im Array $images nacheinander durchlaufen
				//go through all images in array $images
			foreach( $images as $image )
				{
					$imageID = $image->ID;
					//fuer jedes Bild im Array die URL von sowohl der Mittleren, als auch der grossen Groesse ermitteln.
					//get medium and large image url for image
					$medImageSrc = wp_get_attachment_image_src($imageID, $size='medium', $icon = false); 
					$largeImageSrc = wp_get_attachment_image_src($imageID, $size='large', $icon = false); 
 
						//Wenn es sich um das erste Bild im Array handelt...
						//If it's the first image in the array
						if ($count==0)
					{
						//Den Greybox-Code mit einem Vorschaubild ausgeben
						//output Greybox Code with medium size preview
						echo"<a href='$largeImageSrc[0]' rel='shadowbox[Bilder]'><img src='$medImageSrc[0]' border='0'></a>";
					}
					//alle Bilder ,die nach dem erstern Bild kommen
					//this is for all the images that come after the first one
					else
					{
					//unsichtbare Greybox-Verknuepfung darstellen.
					//create invisible Greybox-Links without preview image
					echo"<a href='$largeImageSrc[0]' rel='shadowbox[Bilder]'></a>";
					}
					//Zaehler erhoehen.
					//increase counter
					$count++; 
				} //foreach
		} 
?> 
<!--ENDE Automatic Greybox -->

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<?php

//Die zum Post gehoerenden Bilder ins Array $images schreiben

//Put images from post in to array $images. Order by menu order defined in post gallery

$images = get_children( array('post_parent' => $post->ID, 'post_status' => 'inherit', 'post_type' => 'attachment', 'post_mime_type' => 'image', 'order' => 'ASC', 'orderby' => 'menu_order ID') );

//Pruefen, ob dem Beitrag Bilder angehaengt wurden.

//check if there are any images attached to the post

if (isset($images))

{

//Den Zaehler auf 0 setzen

//set counter to 0

$count=0;

//Alle Bilder im Array $images nacheinander durchlaufen

//go through all images in array $images

foreach( $images as $image )

{

$imageID = $image->ID;

//fuer jedes Bild im Array die URL von sowohl der Mittleren, als auch der grossen Groesse ermitteln.

//get medium and large image url for image

$medImageSrc = wp_get_attachment_image_src($imageID, $size='medium', $icon = false);

$largeImageSrc = wp_get_attachment_image_src($imageID, $size='large', $icon = false);

//Wenn es sich um das erste Bild im Array handelt...

//If it's the first image in the array

if ($count==0)

{

//Den Greybox-Code mit einem Vorschaubild ausgeben

//output Greybox Code with medium size preview

echo"<a href='$largeImageSrc[0]' rel='shadowbox[Bilder]'><img src='$medImageSrc[0]' border='0'></a>";

}

//alle Bilder ,die nach dem erstern Bild kommen

//this is for all the images that come after the first one

else

{

//unsichtbare Greybox-Verknuepfung darstellen.

//create invisible Greybox-Links without preview image

echo"<a href='$largeImageSrc[0]' rel='shadowbox[Bilder]'></a>";

}

//Zaehler erhoehen.

//increase counter

$count++;

} //foreach

}

?>

Snippet Source/Credit: Snipplr

How To Call jQuery In WordPress

The following snippet will you call jQuery in WordPress.

<?php wp_enqueue_script("jquery"); ?>

1	<?php wp_enqueue_script("jquery"); ?>

How To Create Short URL For Posts In WordPress

The following snippet will let you create short URL for posts in WordPress.

//place in functions.php in theme folder
<?php function getTinyUrl($url) { $tinyurl = file_get_contents("http://tinyurl.com/api-create.php?url=".$url); return $tinyurl; } ?> 
//call the function on the page
<a href="http://twitter.com/home?status=Currently reading <?php the_title(); ?> : <?php $turl = getTinyUrl(get_permalink($post->ID)); echo $turl ?>" title="Tweet this">Twitter link</a>

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//place in functions.php in theme folder

<?php function getTinyUrl($url) { $tinyurl = file_get_contents("http://tinyurl.com/api-create.php?url=".$url); return $tinyurl; } ?>

//call the function on the page

<a href="http://twitter.com/home?status=Currently reading <?php the_title(); ?> : <?php $turl = getTinyUrl(get_permalink($post->ID)); echo $turl ?>" title="Tweet this">Twitter link</a>

Snippet Source/Credit: Snipplr

How To Allow Multisite Network In WordPress

The following snippet will let you allow multisite network in WordPress.

/** Sets up WordPress Network for multisite. */
define('WP_ALLOW_MULTISITE', true);

1 2	/** Sets up WordPress Network for multisite. */ define('WP_ALLOW_MULTISITE', true);

The Best Of WordPress Snippets – Part 4

By The Editorial Team

On August 20, 2014

In Snippets

How To Read External Files In WordPress

We often find ways by which we can read external files in safest way. Well, in this I am sharing the snippet which will let you read external files in WordPress.

<?php
/**
 * sicheres einlesen externer Dateien
 */
private function URLreadFsock($host, $file, &$errstr, $successonly=true, $port=80, $timeout=10) {
	if (!function_exists('fsockopen')) {
		$errstr = 'fsockopen() unavailable';
		return false;
	}
	if ($fp = @fsockopen($host, 80, $errno, $errstr, $timeout)) {
		$out  = 'GET '.$file.' HTTP/1.0'."
";
		$out .= 'Host: '.$host."
";
		$out .= 'Connection: Close'."
 ";
		fwrite($fp, $out);
 		$isHeader = true;
		$Data_header = '';
		$Data_body   = '';
		$header_newlocation = '';
		while (!feof($fp)) {
			$line = fgets($fp, 1024);
			if ($isHeader) {
				$Data_header .= $line;
			} else {
				$Data_body .= $line;
			}
			if (eregi('^HTTP/[\\.0-9]+ ([0-9]+) (.+)$', rtrim($line), $matches)) {
				list($dummy, $errno, $errstr) = $matches;
				$errno = intval($errno);
			} elseif (eregi('^Location: (.*)$', rtrim($line), $matches)) {
				$header_newlocation = $matches[1];
			}
			if ($isHeader && ($line == "
")) {
				$isHeader = false;
				if ($successonly) {
					switch ($errno) {
						case 200:
							// great, continue
							break;
 						default:
							$errstr = $errno.' '.$errstr.($header_newlocation ? '; Location: '.$header_newlocation : '');
							fclose($fp);
							return false;
							break;
					}
				}
			}
		}
		fclose($fp);
		return $Data_body;
	}
	return null;
} 
private function ParseURLbetter($url) {
	$parsedURL = @parse_url($url);
	if (!@$parsedURL['port']) {
		switch (strtolower(@$parsedURL['scheme'])) {
			case 'ftp':
				$parsedURL['port'] = 21;
				break;
			case 'https':
				$parsedURL['port'] = 443;
				break;
			case 'http':
				$parsedURL['port'] = 80;
				break;
		}
	}
	return $parsedURL;
} 
private function _getVersionFile($url, &$error, $timeout=10, $followredirects=true) {
	$error = ''; 
	$parsed_url = $this->ParseURLbetter($url);
	$alreadyLookedAtURLs[trim($url)] = true; 
	while (true) {
		$tryagain = false;
		$rawData = $this->URLreadFsock(@$parsed_url['host'], @$parsed_url['path'].'?'.@$parsed_url['query'], $errstr, true, (@$parsed_url['port'] ? @$parsed_url['port'] : 80), $timeout);
		if (eregi('302 [a-z ]+; Location\\: (http.*)', $errstr, $matches)) {
			$matches[1] = trim(@$matches[1]);
			if (!@$alreadyLookedAtURLs[$matches[1]]) {
				// loop through and examine new URL
				$error .= 'URL "'.$url.'" redirected to "'.$matches[1].'"'; 
				$tryagain = true;
				$alreadyLookedAtURLs[$matches[1]] = true;
				$parsed_url = $this->ParseURLbetter($matches[1]);
			}
		}
		if (!$tryagain) {
			break;
		}
	} 
	if ($rawData === false) {
		$error .= 'Error opening "'.$url.'":'."\n\n".$errstr;
		return false;
	} elseif ($rawData === null) {
		// fall through
		$error .= 'Error opening "'.$url.'":'."\n\n".$errstr;
	} else {
		return trim($rawData);
	} 
	// curl
	if (function_exists('curl_version')) {
		$ch = curl_init();
		curl_setopt($ch, CURLOPT_URL, $url);
		curl_setopt($ch, CURLOPT_HEADER, false);
		curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
		curl_setopt($ch, CURLOPT_BINARYTRANSFER, true);
		curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);
		$rawData = curl_exec($ch);
		curl_close($ch);
		if (strlen($rawData) > 0) {
			$error .= 'CURL succeeded ('.strlen($rawData).' bytes); ';
			return trim($rawData);
		}
		$error .= 'CURL available but returned no data; ';
	} else {
		$error .= 'CURL unavailable; ';
	} 
	// fopen
	$BrokenURLfopenPHPversions = array('4.4.2');
	if (in_array(phpversion(), $BrokenURLfopenPHPversions)) {
		$error .= 'fopen(URL) broken in PHP v'.phpversion().'; ';
	} elseif (@ini_get('allow_url_fopen')) {
		$rawData = '';
		$error_fopen = '';
		ob_start();
		if ($fp = fopen($url, 'rb')) {
			do {
				$buffer = fread($fp, 8192);
				$rawData .= $buffer;
			} while (strlen($buffer) > 0);
			fclose($fp);
		} else {
			$error_fopen .= trim(strip_tags(ob_get_contents()));
		}
		ob_end_clean();
		$error .= $error_fopen;
		if (!$error_fopen) {
			$error .= '; "allow_url_fopen" succeeded ('.strlen($rawData).' bytes); ';
			return trim($rawData);
		}
		$error .= '; "allow_url_fopen" enabled but returned no data ('.$error_fopen.'); ';
	} else {
		$error .= '"allow_url_fopen" disabled; ';
	}
	return false;
}

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<?php

/**

* sicheres einlesen externer Dateien

*/

private function URLreadFsock($host, $file, &$errstr, $successonly=true, $port=80, $timeout=10) {

if (!function_exists('fsockopen')) {

$errstr = 'fsockopen() unavailable';

return false;

}

if ($fp = @fsockopen($host, 80, $errno, $errstr, $timeout)) {

$out = 'GET '.$file.' HTTP/1.0'."

";

$out .= 'Host: '.$host."

";

$out .= 'Connection: Close'."

";

fwrite($fp, $out);

$isHeader = true;

$Data_header = '';

$Data_body = '';

$header_newlocation = '';

while (!feof($fp)) {

$line = fgets($fp, 1024);

if ($isHeader) {

$Data_header .= $line;

} else {

$Data_body .= $line;

}

if (eregi('^HTTP/[\\.0-9]+ ([0-9]+) (.+)$', rtrim($line), $matches)) {

list($dummy, $errno, $errstr) = $matches;

$errno = intval($errno);

} elseif (eregi('^Location: (.*)$', rtrim($line), $matches)) {

$header_newlocation = $matches[1];

}

if ($isHeader && ($line == "

")) {

$isHeader = false;

if ($successonly) {

switch ($errno) {

case 200:

// great, continue

break;

default:

$errstr = $errno.' '.$errstr.($header_newlocation ? '; Location: '.$header_newlocation : '');

fclose($fp);

return false;

break;

}

fclose($fp);

return $Data_body;

}

return null;

}

private function ParseURLbetter($url) {

$parsedURL = @parse_url($url);

if (!@$parsedURL['port']) {

switch (strtolower(@$parsedURL['scheme'])) {

case 'ftp':

$parsedURL['port'] = 21;

break;

case 'https':

$parsedURL['port'] = 443;

break;

case 'http':

$parsedURL['port'] = 80;

break;

}

return $parsedURL;

}

private function _getVersionFile($url, &$error, $timeout=10, $followredirects=true) {

$error = '';

$parsed_url = $this->ParseURLbetter($url);

$alreadyLookedAtURLs[trim($url)] = true;

while (true) {

$tryagain = false;

$rawData = $this->URLreadFsock(@$parsed_url['host'], @$parsed_url['path'].'?'.@$parsed_url['query'], $errstr, true, (@$parsed_url['port'] ? @$parsed_url['port'] : 80), $timeout);

if (eregi('302 [a-z ]+; Location\\: (http.*)', $errstr, $matches)) {

$matches[1] = trim(@$matches[1]);

if (!@$alreadyLookedAtURLs[$matches[1]]) {

// loop through and examine new URL

$error .= 'URL "'.$url.'" redirected to "'.$matches[1].'"';

$tryagain = true;

$alreadyLookedAtURLs[$matches[1]] = true;

$parsed_url = $this->ParseURLbetter($matches[1]);

}

if (!$tryagain) {

break;

}

if ($rawData === false) {

$error .= 'Error opening "'.$url.'":'."\n\n".$errstr;

return false;

} elseif ($rawData === null) {

// fall through

$error .= 'Error opening "'.$url.'":'."\n\n".$errstr;

} else {

return trim($rawData);

}

// curl

if (function_exists('curl_version')) {

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, $url);

curl_setopt($ch, CURLOPT_HEADER, false);

curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

curl_setopt($ch, CURLOPT_BINARYTRANSFER, true);

curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);

$rawData = curl_exec($ch);

curl_close($ch);

if (strlen($rawData) > 0) {

$error .= 'CURL succeeded ('.strlen($rawData).' bytes); ';

return trim($rawData);

}

$error .= 'CURL available but returned no data; ';

} else {

$error .= 'CURL unavailable; ';

}

// fopen

$BrokenURLfopenPHPversions = array('4.4.2');

if (in_array(phpversion(), $BrokenURLfopenPHPversions)) {

$error .= 'fopen(URL) broken in PHP v'.phpversion().'; ';

} elseif (@ini_get('allow_url_fopen')) {

$rawData = '';

$error_fopen = '';

ob_start();

if ($fp = fopen($url, 'rb')) {

do {

$buffer = fread($fp, 8192);

$rawData .= $buffer;

} while (strlen($buffer) > 0);

fclose($fp);

} else {

$error_fopen .= trim(strip_tags(ob_get_contents()));

}

ob_end_clean();

$error .= $error_fopen;

if (!$error_fopen) {

$error .= '; "allow_url_fopen" succeeded ('.strlen($rawData).' bytes); ';

return trim($rawData);

}

$error .= '; "allow_url_fopen" enabled but returned no data ('.$error_fopen.'); ';

} else {

$error .= '"allow_url_fopen" disabled; ';

}

return false;

}

Snippet Source/Credit: Snipplr

How To Remove Code Which Got Added For An iframe Injection In WordPress

The following snippet will let you remove the code which got added for an iframe injection. Before doing this, make sure you do backup all your data.

# FIND
find . -type f | xargs grep -l '<iframe.*statanalyze.cn.*iframe' 
# REPLACE
find . -type f -exec sed -i 's/<iframe.*statanalyze.cn.*iframe>//g' {} \;

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# FIND

find . -type f | xargs grep -l '<iframe.*statanalyze.cn.*iframe'

# REPLACE

find . -type f -exec sed -i 's/<iframe.*statanalyze.cn.*iframe>//g' {} \;

Snippet Source/Credit: WordPress.org

How To Remove Dashboard Widgets In WordPress

The following snippet will let you remove the dashboard widgets in your WordPress website. Paste the following into your functions.php file.

function remove_dashboard_widgets() {
	global $wp_meta_boxes; 
	unset($wp_meta_boxes['dashboard']['side']['core']['dashboard_quick_press']);
	unset($wp_meta_boxes['dashboard']['normal']['core']['dashboard_incoming_links']);
	unset($wp_meta_boxes['dashboard']['normal']['core']['dashboard_right_now']);
	unset($wp_meta_boxes['dashboard']['normal']['core']['dashboard_plugins']);
	unset($wp_meta_boxes['dashboard']['normal']['core']['dashboard_recent_drafts']);
	unset($wp_meta_boxes['dashboard']['normal']['core']['dashboard_recent_comments']);
	unset($wp_meta_boxes['dashboard']['side']['core']['dashboard_primary']);
	unset($wp_meta_boxes['dashboard']['side']['core']['dashboard_secondary']); 
} 
if (!current_user_can('manage_options')) {
	add_action('wp_dashboard_setup', 'remove_dashboard_widgets' );
}

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function remove_dashboard_widgets() {

global $wp_meta_boxes;

unset($wp_meta_boxes['dashboard']['side']['core']['dashboard_quick_press']);

unset($wp_meta_boxes['dashboard']['normal']['core']['dashboard_incoming_links']);

unset($wp_meta_boxes['dashboard']['normal']['core']['dashboard_right_now']);

unset($wp_meta_boxes['dashboard']['normal']['core']['dashboard_plugins']);

unset($wp_meta_boxes['dashboard']['normal']['core']['dashboard_recent_drafts']);

unset($wp_meta_boxes['dashboard']['normal']['core']['dashboard_recent_comments']);

unset($wp_meta_boxes['dashboard']['side']['core']['dashboard_primary']);

unset($wp_meta_boxes['dashboard']['side']['core']['dashboard_secondary']);

}

if (!current_user_can('manage_options')) {

add_action('wp_dashboard_setup', 'remove_dashboard_widgets' );

}

Snippet Source/Credit: WPRecipes.com

How To Replace The WordPress Generator

The following snippet will let you replace the WordPress generator.

// Remove the WordPress Generator
function remove_generators() { return ''; }
add_filter( 'the_generator', 'remove_generators' ); 
// Replace the WordPress Generator
function change_generators() { return '<meta name="generator" content="WordPress" />'; }
add_filter( 'the_generator', 'change_generators' );

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// Remove the WordPress Generator

function remove_generators() { return ''; }

add_filter( 'the_generator', 'remove_generators' );

// Replace the WordPress Generator

function change_generators() { return '<meta name="generator" content="WordPress" />'; }

add_filter( 'the_generator', 'change_generators' );

Snippet Source/Credit: DevZone.fr

How To Reset A Query In WordPress

The following snippet will let you reset a query in WordPress.

// esempio in una ipotetica index.php
// a fine pagina, dopo aver eseguito una o più
// query_posts() personali
<?php wp_reset_query(); get_sidebar(); get_footer(); ?>

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// esempio in una ipotetica index.php

// a fine pagina, dopo aver eseguito una o più

// query_posts() personali

<?php wp_reset_query(); get_sidebar(); get_footer(); ?>

Snippet Source/Credit: Undolog.com

The Best Of WordPress Snippets – Part 3

By The Editorial Team

On August 15, 2014

In Snippets

How To Have Your WordPress Website Move From Local To Remote Procedures

The following snippet will let you have your WordPress website move from local to remote procedures.

UPDATE wp_posts SET post_content = REPLACE(post_content, 'http://localhost:8888/', 'http://www.new-domain.com');
UPDATE wp_posts SET post_excerpt = REPLACE(post_excerpt, 'http://localhost:8888/', 'http://www.new-domain.com');
UPDATE wp_posts SET guid = REPLACE(guid, 'http://localhost:8888/','http://www.new-domain.com');
UPDATE wp_options SET option_value = REPLACE(option_value, 'http://localhost:8888/', 'http://new-domain.com/');
UPDATE wp_postmeta SET meta_value = REPLACE(meta_value, 'http://localhost:8888/', 'http://new-domain.com/');

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UPDATE wp_posts SET post_content = REPLACE(post_content, 'http://localhost:8888/', 'http://www.new-domain.com');

UPDATE wp_posts SET post_excerpt = REPLACE(post_excerpt, 'http://localhost:8888/', 'http://www.new-domain.com');

UPDATE wp_posts SET guid = REPLACE(guid, 'http://localhost:8888/','http://www.new-domain.com');

UPDATE wp_options SET option_value = REPLACE(option_value, 'http://localhost:8888/', 'http://new-domain.com/');

UPDATE wp_postmeta SET meta_value = REPLACE(meta_value, 'http://localhost:8888/', 'http://new-domain.com/');

How To Load Content Externally In WordPress

The following snippet will let you load content externally in WordPress.

require($_SERVER['DOCUMENT_ROOT'].'/wp-load.php' );

1	require($_SERVER['DOCUMENT_ROOT'].'/wp-load.php' );

Snippet Source/Credit: Snipplr

How To Manually load Google’s Latest jQuery In WordPress

Using the following snippet below, you will be able to manually load Google’s latest jQuery in WordPress.

<?php wp_deregister_script('jquery'); ?>
<?php wp_head(); ?>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>

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<?php wp_deregister_script('jquery'); ?>

<?php wp_head(); ?>

Snippet Source/Credit: encosia.com

How To Organize WordPress Category Archive Listing By Subcategory

The following snippet below will let you organize WordPress archive listings by subcategory.

<?php $categories = get_categories("child_of=17"); foreach ($categories as $cat) { ?>
	<div class="genre_subcat">
		<?php query_posts("cat=$cat->cat_ID&showposts=-1&order=ASC&orderby=name"); ?>
		<h2><?php single_cat_title(); ?></h2>
		<small><?php echo category_description($cat->cat_ID); ?></small>
		<?php while (have_posts()) : the_post(); ?>
			<div class="post">
				<h3><a href="<?php the_permalink() ?>" rel="bookmark" title="Permanent Link to
				<?php the_title_attribute(); ?>"><?php the_title(); ?></a></h3>
				<p class="postdate"><?php the_time('F jS, Y') ?></p>
				<?php the_content(); ?>
				<p class="postmetadata">Posted in <?php the_category(', ') ?> |
				<?php comments_popup_link('No Comments', '1 Comment', '% Comments'); ?></p>
			</div>
		<?php endwhile; ?>
	</div>
<?php }?>

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<?php $categories = get_categories("child_of=17"); foreach ($categories as $cat) { ?>

<?php query_posts("cat=$cat->cat_ID&showposts=-1&order=ASC&orderby=name"); ?>

<?php while (have_posts()) : the_post(); ?>

<h3><a href="<?php the_permalink() ?>" rel="bookmark" title="Permanent Link to

<?php the_title_attribute(); ?>"><?php the_title(); ?></a></h3>

<?php the_content(); ?>

<p class="postmetadata">Posted in <?php the_category(', ') ?> |

<?php comments_popup_link('No Comments', '1 Comment', '% Comments'); ?></p>

</div>

<?php endwhile; ?>

</div>

<?php }?>

Snippet Source/Credit: iamnotagoodartist.com

How To Prevent WordPress Stylesheet From Being Cached

We often are in the condition in which we are looking out for the ways by which we can prevent WordPress stylesheet from being cached. To help you out with the same, the following snippet below will let you achieve the same.

<link rel="stylesheet" href="<?php $theme_data = get_theme_data(TEMPLATEPATH . '/style.css'); bloginfo('stylesheet_url'); echo '?' . $theme_data['Version']; ?>" type="text/css" media="screen, projection" />

1	<link rel="stylesheet" href="<?php $theme_data = get_theme_data(TEMPLATEPATH . '/style.css'); bloginfo('stylesheet_url'); echo '?' . $theme_data['Version']; ?>" type="text/css" media="screen, projection" />

Snippet Source/Credit: WPRecipes.com

The Best Of WordPress Snippets – Part 2

By The Editorial Team

On August 8, 2014

In Snippets

How To Get The Root Page ID In WordPress

The following snippet will let you get the root page id in WordPress.

<?php $root_page_id = ( empty( $post->ancestors ) ) ? $post->ID : end( $post->ancestors ); ?>

1	<?php $root_page_id = ( empty( $post->ancestors ) ) ? $post->ID : end( $post->ancestors ); ?>

Snippet Source/Credit: WordPress.org

How To Have Browser Detection Function In WordPress

Adding the following snippet in your theme’s functions.php file will let you have browser detection function in WordPress.

/*Browser Detect*/

function browser_detect(){

$ipod = stripos($_SERVER['HTTP_USER_AGENT'],"iPod");

$iphone = stripos($_SERVER['HTTP_USER_AGENT'],"iPhone");

$firefox = stripos($_SERVER['HTTP_USER_AGENT'],"Firefox");

$safari = stripos($_SERVER['HTTP_USER_AGENT'],"Safari");

$ie = stripos($_SERVER['HTTP_USER_AGENT'],"MSIE");

$opera = stripos($_SERVER['HTTP_USER_AGENT'],"Opera");

$maxthon = stripos($_SERVER['HTTP_USER_AGENT'],"Maxthon");

$chrome = stripos($_SERVER['HTTP_USER_AGENT'],"Chrome");

$netscape = stripos($_SERVER['HTTP_USER_AGENT'],"Netscape");

$traveler = stripos($_SERVER['HTTP_USER_AGENT'], "Traveler");

//detecting device

if ($ipod == true || $iphone == true){

echo "<div class=\"browser\">";

echo "<img src=\"images/iphone.png\">";

echo "<br />";

echo "<p>You are viewing this site on an Ipod or Iphone</p>";

echo "</div>";

}elseif($firefox == true){

echo "<div class=\"browser\">";

echo "<img src=\"images/Firefox.png\">";

echo "<br />";

echo "<p>You are viewing this site in Firefox</p>";

echo "</div>";

 

}elseif($ie == true){

echo "<div class=\"browser\">";

echo "<img src=\"images/IE.png\">";

echo "<br />";

echo "<p>You are viewing this site in Internet Explorer</p>";

echo "</div>";

 

}elseif($netscape == true){

echo "<div class=\"browser\">";

echo "<img src=\"images/Netcape.png\">";

echo "<br />";

echo "<p>You are viewing this site in Netscape</p>";

echo "</div>";

 

}elseif($traveler == true){

echo "<div class=\"browser\">";

echo "<img src=\"images/Traveler.png\">";

echo "<br />";

echo "<p>You are viewing this site in Traveler</p>";

echo "</div>";

 

}elseif($maxthon == true){

echo "<div class=\"browser\">";

echo "<img src=\"images/Maxthon.png\">";

echo "<br />";

echo "<p>You are viewing this site in Maxthon</p>";

echo "</div>";

 

}elseif($chrome == true){

echo "<div class=\"browser\">";

echo "<img src=\"images/Chrome.png\">";

echo "<br />";

echo "<p>You are viewing this site in Chrome</p>";

echo "</div>";

 

}elseif($safari == true){

echo "<div class=\"browser\">";

echo "<img src=\"images/Safari.png\">";

echo "<br />";

echo "<p>You are viewing this site in Safari</p>";

echo "</div>";

 

}elseif($opera == true){

echo "<div class=\"browser\">";

echo "<img src=\"images/Opera.png\">";

echo "<br />";

echo "<p>You are viewing this site in Opera</p>";

echo "</div>";

}else{

echo "<div class=\"browser\">";

echo "<img src=\"images/Q.png\">";

echo "<br />";

echo "<p>We currently dont know your browser.</p>";

echo "</div>";

}

};

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/*Browser Detect*/

function browser_detect(){

$ipod = stripos($_SERVER['HTTP_USER_AGENT'],"iPod");

$iphone = stripos($_SERVER['HTTP_USER_AGENT'],"iPhone");

$firefox = stripos($_SERVER['HTTP_USER_AGENT'],"Firefox");

$safari = stripos($_SERVER['HTTP_USER_AGENT'],"Safari");

$ie = stripos($_SERVER['HTTP_USER_AGENT'],"MSIE");

$opera = stripos($_SERVER['HTTP_USER_AGENT'],"Opera");

$maxthon = stripos($_SERVER['HTTP_USER_AGENT'],"Maxthon");

$chrome = stripos($_SERVER['HTTP_USER_AGENT'],"Chrome");

$netscape = stripos($_SERVER['HTTP_USER_AGENT'],"Netscape");

$traveler = stripos($_SERVER['HTTP_USER_AGENT'], "Traveler");

//detecting device

if ($ipod == true || $iphone == true){