Code – JustWP

What Are The Reasons To Learn C #?

On June 11, 2019

The C # offers various basic and advanced C # concepts. C # language is both for beginners and professionals. C # is a .Net Framework programming language.

The C # consist all C # themes, control instructions, objects and classes, inheritance, constructor, destructor, this, static, sealed, polymorphism, abstraction, abstract type, interface, namespace, encapsulation, properties, indexer, arrays, strings, regular expressions, exception handling, multiple sub-processes, IO files, collections, etc. C # is a general-purpose, object-oriented programming language that refers as “C sharp”. It was developed by Microsoft led by Anders Hejlsberg and his team members within the the.Net initiative and permit by the European Association of Computer Manufacturers (ECMA) and the International Standards Organization (ISO). C # is famous amongst the languages for Common Language Infrastructure, and the latest version of C # is version 7.2. C # is very much related to Java syntactically and is simple for users who have the basic knowledge of C, C ++ or Java.

A bit of.Net Framework

The .Net applications are multiway platform applications, and the Framework can utilize from languages such as C ++, C #, Visual Basic, COBOL, etc. It is planned in a way so that other languages can use it.

Why #?

C # has various other reasons to be famous and in demand. Some of the reasons are mentioning below:

1. Easy to start: C sharp is high-level language, so it is similar to additional popular programming languages such as C, C ++ and Java and, therefore, it is easy to learn for everyone.

2. Widely used to develop desktop and web applications: C # is broadly used to expand web applications and desktop applications. It is single, and mainly popular languages utilize in the professional desktop. If someone wants to build Microsoft applications, C # is the language.

3. Community: the more significant the community, the better the measure that new tools and software will be developed to improve it. C # has a vast community, so the developments are made to exist in the system and not turn into extinct.

4. Game development: C # is broadly utilized in game development and will carry on dominating. C # incorporates with Microsoft and, therefore, has a broad target audience. The features of C # like automatic garbage collection, interfaces, object orientation, etc. make C # a trendy game development language.

Starting with programming in C #:

Find a compiler:

There are several online IDEs, like GeeksforGeeks ide, CodeChef ide, etc., which can be utilized to run C # programs without installing.

Windows: Since the C # produces within the Microsoft .NET framework initiative, it offers several IDE to execute C # programs: Microsoft Visual Studio, Visual Studio Express, Visual Web Developer

Linux: Mono can be utilized to run C # programs on Linux.

Programming in C #:

Since C # is very similar to other syntactic languages, it is simple to code and learn in C #.

Programs can be written in C # in any text editors such as Notepad ++, gedit, etc. or in any of the compilers. After printing the code, save the particular file with the extension cs.

Reasons to learn C sharp

Modernized language

C # is an add-on version of C ++. Previously programmers had the C language, which utilized. C ++ started adding orientation to objects in C, and C ++ became the “real” application creation language for Windows (according to C ++ developers). C ++ was utilize to write infrastructure and applications which is low level, while Visual Basic developers use to write business applications.

C # brings VB’s rapid development pattern to the world of C ++ developers, with several clear changes. C # takes the benefits of .NET Framework, which means it has the right to use a powerful forms engine, like the VB developers, have had for many years. New data types have been extra, Like the type of decimal data to perform financial computation.

Type of security

C # is a secure type, which means several things. For example, programmers cannot make use of uninitialized variables. In C ++ it is straightforward to declare a variable and then verify its value. The C # compiler will inform the user if the user tries to utilize a variable before they have initialized it to some value. With C #, user cannot go past the end of an array, as a user has been capable of doing in C and C ++ for years.

Object-oriented

In C # simple data types can be treated as objects, which mean that an int has associated methods. For example, a programmer can utilize the ToString method to get a string value for int, as shown follow.

Int Counter = 14;

Console.Write (Counter.ToString ());

Besides, literal strings can be treated as objects and support a range of methods, like Trim, ToUpper, ToLower, and many others, as shown here:

Console.Write (“hello, world” .ToUpper ());

Capabilities in several languages

C # can allow the programmer to interoperate with any other language in the .NET platform. C # also facilitates the concept of error handling in various languages.

XML Comments

C # supports the beginning of XML comments. Far from being just one more way to append comments to the code, XML comments can become the part of the documentation. Comments are positioned in XML format and can then be utilized as necessary to document the particular code. This documentation may comprise sample code, parameters and indication to other topics. Finally, it makes intellect for a developer to document their code since those comments can become documentation self-regulating of the source code. This C# general purpose language was initially produced by Microsoft to be utilized to develop applications on the Microsoft platform, and C # developers like the language because it is pleasant to apply and well designed. If a programmer wants to build apps for the Microsoft platform, then the programmer must naturally learn C #.

Snippets Collection 5

By The Editorial Team

On September 7, 2016

In Snippets

Author Bio Excerpt

The snippet below will let you have the author bio excerpt.

<?php
// Paste the code below to the functions.php file inside the theme directory you're using.
function author_excerpt (){
$word_limit = 20; // Limit the number of words
$more_txt = 'read more about:'; // The read more text
$txt_end = '...'; // Display text end
$authorName = get_the_author();
$authorUrl = get_author_posts_url( get_the_author_meta('ID'));
$authorDescription = explode(" ", get_the_author_meta('description'));
$displayAuthorPageLink = count($authorDescription) > $word_limit ? $txt_end.' '.$more_txt.' <a href="'.$authorUrl.'">'.$authorName.'</a>' : '' ;
$authorDescriptionShort = array_slice($authorDescription, 0, ($word_limit));
return (implode($authorDescriptionShort, ' ')).$displayAuthorPageLink;
}
?>
<?php
// Add this code snippet to the single.php file where you like to display the author bio excerpt.
if (function_exists('author_excerpt')){echo author_excerpt();}
?>

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<?php

// Paste the code below to the functions.php file inside the theme directory you're using.

function author_excerpt (){

$word_limit = 20; // Limit the number of words

$more_txt = 'read more about:'; // The read more text

$txt_end = '...'; // Display text end

$authorName = get_the_author();

$authorUrl = get_author_posts_url( get_the_author_meta('ID'));

$authorDescription = explode(" ", get_the_author_meta('description'));

$displayAuthorPageLink = count($authorDescription) > $word_limit ? $txt_end.' '.$more_txt.' <a href="'.$authorUrl.'">'.$authorName.'</a>' : '' ;

$authorDescriptionShort = array_slice($authorDescription, 0, ($word_limit));

return (implode($authorDescriptionShort, ' ')).$displayAuthorPageLink;

}

?>

<?php

// Add this code snippet to the single.php file where you like to display the author bio excerpt.

if (function_exists('author_excerpt')){echo author_excerpt();}

?>

Disable Self Trackbacks

The following snippet will let you disable self trackbacks.

<?php
function disable_self_ping( &$links ) {
foreach ( $links as $l => $link )
if ( 0 === strpos( $link, get_option( 'home' ) ) )
unset($links[$l]);
}
add_action( 'pre_ping', 'disable_self_ping' );
?>

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<?php

function disable_self_ping( &$links ) {

foreach ( $links as $l => $link )

if ( 0 === strpos( $link, get_option( 'home' ) ) )

unset($links[$l]);

}

add_action( 'pre_ping', 'disable_self_ping' );

?>

Remove Login Shake

The following snippet has to be added to functions.php and it will remove the “wrong password” screen shake.

<?php
function my_login_head() {
remove_action('login_head', 'wp_shake_js', 12);
}
add_action('login_head', 'my_login_head');
?>

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<?php

function my_login_head() {

remove_action('login_head', 'wp_shake_js', 12);

}

add_action('login_head', 'my_login_head');

?>

Only Show Admin Bar To Administrators

The following snippet will let you show the admin bar to administrators.

<?php
// Snippet code goes here!
if (!current_user_can('administrator')) :
show_admin_bar(false);
endif;
?>

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<?php

// Snippet code goes here!

if (!current_user_can('administrator')) :

show_admin_bar(false);

endif;

?>

QR Code With Article Link

To have the QR-code rendered for every article, just insert the following snippet inside the WordPress loop.

<img src="http://api.qrserver.com/v1/create-qr-code/?size=500x500&data="
<?php the_permalink() ?>
" alt="QR Code for
<?php the_title_attribute(); ?>
"/>

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<img src="http://api.qrserver.com/v1/create-qr-code/?size=500x500&data="

<?php the_permalink() ?>

" alt="QR Code for

<?php the_title_attribute(); ?>

"/>

Snippets Collection 4

By The Editorial Team

On August 29, 2016

In Snippets

Disable Plugin Updates

The snippet below will allow you to disable plugin updates.

<?php
remove_action( 'load-update-core.php', 'wp_update_plugins' );
add_filter( 'pre_site_transient_update_plugins', create_function( '$a', "return null;" ) );
?>

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<?php

remove_action( 'load-update-core.php', 'wp_update_plugins' );

add_filter( 'pre_site_transient_update_plugins', create_function( '$a', "return null;" ) );

?>

List all categories with posts

The snippet below will let you list all categories with posts.

<?php
//for each category, show all posts
$cat_args=array(
'orderby' => 'name',
'order' => 'ASC'
);
$categories=get_categories($cat_args);
foreach($categories as $category) {
$args=array(
'showposts' => -1,
'category__in' => array($category->term_id),
'caller_get_posts'=>1
);
$posts=get_posts($args);
if ($posts) {
echo '<p>Category: <a href="' . get_category_link( $category->term_id ) . '" title="' . sprintf( __( "View all posts in %s" ), $category->name ) . '" ' . '>' . $category->name.'</a> </p> ';
foreach($posts as $post) {
setup_postdata($post); ?>
<p><a href="
<?php the_permalink() ?>
" rel="bookmark" title="Permanent Link to
<?php the_title_attribute(); ?>
">
<?php the_title(); ?>
</a></p>
<?php
} // foreach($posts
} // if ($posts
} // foreach($categories
?>

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<?php

//for each category, show all posts

$cat_args=array(

'orderby' => 'name',

'order' => 'ASC'

);

$categories=get_categories($cat_args);

foreach($categories as $category) {

$args=array(

'showposts' => -1,

'category__in' => array($category->term_id),

'caller_get_posts'=>1

);

$posts=get_posts($args);

if ($posts) {

echo '<p>Category: <a href="' . get_category_link( $category->term_id ) . '" title="' . sprintf( __( "View all posts in %s" ), $category->name ) . '" ' . '>' . $category->name.'</a> </p> ';

foreach($posts as $post) {

setup_postdata($post); ?>

<p><a href="

<?php the_permalink() ?>

" rel="bookmark" title="Permanent Link to

<?php the_title_attribute(); ?>

">

<?php the_title(); ?>

</a></p>

<?php

} // foreach($posts

} // if ($posts

} // foreach($categories

?>

Override WordPress and Site URL

The following snippet will let you override WordPress and site URL.

<?php
// Define wp home and site url
define('WP_HOME','http://production.whateversite.com');
define('WP_SITEURL','http://production.whateversite.com');
?>

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<?php

// Define wp home and site url

define('WP_HOME','http://production.whateversite.com');

define('WP_SITEURL','http://production.whateversite.com');

?>

Get the first link in post

The following snippet will let you get the first link in post.

function get_content_link( $content = false, $echo = false )
{
if ( $content === false )
$content = get_the_content();
$content = preg_match_all( '/hrefs*=s*["']([^"']+)/', $content, $links );
$content = $links[1][0];
if ( empty($content) ) {
$content = false;
}
return $content;
}

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function get_content_link( $content = false, $echo = false )

{

if ( $content === false )

$content = get_the_content();

$content = preg_match_all( '/hrefs*=s*["']([^"']+)/', $content, $links );

$content = $links[1][0];

if ( empty($content) ) {

$content = false;

}

return $content;

}

Check if sidebar has widgets

The snippets checks that if a sidebar of your website having any widget areas in it or not.

function is_sidebar_active($index) {
global $wp_registered_sidebars;
$widgetcolums = wp_get_sidebars_widgets();
if ($widgetcolums[$index])
return true;
return false;
}

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function is_sidebar_active($index) {

global $wp_registered_sidebars;

$widgetcolums = wp_get_sidebars_widgets();

if ($widgetcolums[$index])

return true;

return false;

}

Snippets Collection 3

By The Editorial Team

On August 10, 2016

In Snippets

Redirect your Author archive link to your “About” page

The following snippet will let you redirect your author archive link to your website’s about us page.

add_filter( 'author_link', 'my_author_link');
function my_author_link() {
return home_url( 'about' );
}

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add_filter( 'author_link', 'my_author_link');

function my_author_link() {

return home_url( 'about' );

}

Change Image Path Only

The following snippet will let you change image path only.

UPDATE wp_posts SET post_content = REPLACE (post_content, 'src="http://www.oldsiteurl.com', 'src="http://yourcdn.newsiteurl.com');

1	UPDATE wp_posts SET post_content = REPLACE (post_content, 'src="http://www.oldsiteurl.com', 'src="http://yourcdn.newsiteurl.com');

Add Thumbnails in Manage Posts/Pages List

The following snippet will let you add thumbnails in manage posts/pages list.

/****** Add Thumbnails in Manage Posts/Pages List ******/
if ( !function_exists('AddThumbColumn') && function_exists('add_theme_support') ) {
// for post and page
add_theme_support('post-thumbnails', array( 'post', 'page' ) );
function AddThumbColumn($cols) {
$cols['thumbnail'] = __('Thumbnail');
return $cols;
}
function AddThumbValue($column_name, $post_id) {
$width = (int) 35;
$height = (int) 35;
if ( 'thumbnail' == $column_name ) {
// thumbnail of WP 2.9
$thumbnail_id = get_post_meta( $post_id, '_thumbnail_id', true );
// image from gallery
$attachments = get_children( array('post_parent' => $post_id, 'post_type' => 'attachment', 'post_mime_type' => 'image') );
if ($thumbnail_id)
$thumb = wp_get_attachment_image( $thumbnail_id, array($width, $height), true );
elseif ($attachments) {
foreach ( $attachments as $attachment_id => $attachment ) {
$thumb = wp_get_attachment_image( $attachment_id, array($width, $height), true );
}
}
if ( isset($thumb) && $thumb ) {
echo $thumb;
} else {
echo __('None');
}
}
}
// for posts
add_filter( 'manage_posts_columns', 'AddThumbColumn' );
add_action( 'manage_posts_custom_column', 'AddThumbValue', 10, 2 );
// for pages
add_filter( 'manage_pages_columns', 'AddThumbColumn' );
add_action( 'manage_pages_custom_column', 'AddThumbValue', 10, 2 );

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/****** Add Thumbnails in Manage Posts/Pages List ******/

if ( !function_exists('AddThumbColumn') && function_exists('add_theme_support') ) {

// for post and page

add_theme_support('post-thumbnails', array( 'post', 'page' ) );

function AddThumbColumn($cols) {

$cols['thumbnail'] = __('Thumbnail');

return $cols;

}

function AddThumbValue($column_name, $post_id) {

$width = (int) 35;

$height = (int) 35;

if ( 'thumbnail' == $column_name ) {

// thumbnail of WP 2.9

$thumbnail_id = get_post_meta( $post_id, '_thumbnail_id', true );

// image from gallery

$attachments = get_children( array('post_parent' => $post_id, 'post_type' => 'attachment', 'post_mime_type' => 'image') );

if ($thumbnail_id)

$thumb = wp_get_attachment_image( $thumbnail_id, array($width, $height), true );

elseif ($attachments) {

foreach ( $attachments as $attachment_id => $attachment ) {

$thumb = wp_get_attachment_image( $attachment_id, array($width, $height), true );

}

if ( isset($thumb) && $thumb ) {

echo $thumb;

} else {

echo __('None');

}

// for posts

add_filter( 'manage_posts_columns', 'AddThumbColumn' );

add_action( 'manage_posts_custom_column', 'AddThumbValue', 10, 2 );

// for pages

add_filter( 'manage_pages_columns', 'AddThumbColumn' );

add_action( 'manage_pages_custom_column', 'AddThumbValue', 10, 2 );

Checks if the visitor is from mobile device

The following snippet will let you checks if the visitor is from mobile device or not.

<?php
// Add to functions.php
// version proof, checks if the visitor is from a mobile device
function muneeb_wp_is_mobile() {
if ( function_exists( 'wp_is_mobile' ) )
return wp_is_mobile();
//code from wp_is_mobile function, wp_is_mobile() is located in wp-includes/vars.php version 3.4
static $is_mobile;
if ( isset($is_mobile) )
return $is_mobile;
if ( empty($_SERVER['HTTP_USER_AGENT']) ) {
$is_mobile = false;
} elseif ( strpos($_SERVER['HTTP_USER_AGENT'], 'Mobile') !== false // many mobile devices (all iPhone, iPad, etc.)
|| strpos($_SERVER['HTTP_USER_AGENT'], 'Android') !== false
|| strpos($_SERVER['HTTP_USER_AGENT'], 'Silk/') !== false
|| strpos($_SERVER['HTTP_USER_AGENT'], 'Kindle') !== false
|| strpos($_SERVER['HTTP_USER_AGENT'], 'BlackBerry') !== false
|| strpos($_SERVER['HTTP_USER_AGENT'], 'Opera Mini') !== false ) {
$is_mobile = true;
} else {
$is_mobile = false;
}
return $is_mobile;
}
// Use anywhere
if ( muneeb_wp_is_mobile() ){
//do mobile stuff here
}
?>

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<?php

// Add to functions.php

// version proof, checks if the visitor is from a mobile device

function muneeb_wp_is_mobile() {

if ( function_exists( 'wp_is_mobile' ) )

return wp_is_mobile();

//code from wp_is_mobile function, wp_is_mobile() is located in wp-includes/vars.php version 3.4

static $is_mobile;

if ( isset($is_mobile) )

return $is_mobile;

if ( empty($_SERVER['HTTP_USER_AGENT']) ) {

$is_mobile = false;

} elseif ( strpos($_SERVER['HTTP_USER_AGENT'], 'Mobile') !== false // many mobile devices (all iPhone, iPad, etc.)

|| strpos($_SERVER['HTTP_USER_AGENT'], 'Android') !== false

|| strpos($_SERVER['HTTP_USER_AGENT'], 'Silk/') !== false

|| strpos($_SERVER['HTTP_USER_AGENT'], 'Kindle') !== false

|| strpos($_SERVER['HTTP_USER_AGENT'], 'BlackBerry') !== false

|| strpos($_SERVER['HTTP_USER_AGENT'], 'Opera Mini') !== false ) {

$is_mobile = true;

} else {

$is_mobile = false;

}

return $is_mobile;

}

// Use anywhere

if ( muneeb_wp_is_mobile() ){

//do mobile stuff here

}

?>

Add titles to previous_post_link & next_post_link

The following snippet will let you add titles to previous and next post links.

<?php
$p = get_adjacent_post(false, '', true);
if(!empty($p)) echo '<div class="prev"><a href="' . get_permalink($p->ID) . '" title="' . $p->post_title . '">' . $p->post_title . '</a></div>';
$n = get_adjacent_post(false, '', false);
if(!empty($n)) echo '<div class="next"><a href="' . get_permalink($n->ID) . '" title="' . $n->post_title . '">' . $n->post_title . '</a></div>';
?>

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<?php

$p = get_adjacent_post(false, '', true);

if(!empty($p)) echo '<div class="prev"><a href="' . get_permalink($p->ID) . '" title="' . $p->post_title . '">' . $p->post_title . '</a></div>';

$n = get_adjacent_post(false, '', false);

if(!empty($n)) echo '<div class="next"><a href="' . get_permalink($n->ID) . '" title="' . $n->post_title . '">' . $n->post_title . '</a></div>';

?>

Snippets Collection 2

By The Editorial Team

On August 1, 2016

In Snippets

Temporary Maintenance

The following snippet will let you temporarily close down your site for visits while your website can still be accessed by admins resulting in letting you do the changes that you are planning for

// Temp Maintenance - with http response 503 (Service Temporarily Unavailable)
// This will only block users who are NOT an administrator from viewing the website.
function wp_maintenance_mode(){
if(!current_user_can('edit_themes') || !is_user_logged_in()){
wp_die('Maintenance, please come back soon.', 'Maintenance - please come back soon.', array('response' => '503'));
}
}
add_action('get_header', 'wp_maintenance_mode');

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// Temp Maintenance - with http response 503 (Service Temporarily Unavailable)

// This will only block users who are NOT an administrator from viewing the website.

function wp_maintenance_mode(){

if(!current_user_can('edit_themes') || !is_user_logged_in()){

wp_die('Maintenance, please come back soon.', 'Maintenance - please come back soon.', array('response' => '503'));

}

add_action('get_header', 'wp_maintenance_mode');

Add featured images to WordPress feeds

The snippet below will let you add featured images to WordPress feeds.

function rss_post_thumbnail($content) {
global $post;
if(has_post_thumbnail($post->ID)) {
$content = get_the_post_thumbnail($post->ID) . $content;
}
return $content;
}
add_filter('the_excerpt_rss', 'rss_post_thumbnail');
add_filter('the_content_feed', 'rss_post_thumbnail');

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function rss_post_thumbnail($content) {

global $post;

if(has_post_thumbnail($post->ID)) {

$content = get_the_post_thumbnail($post->ID) . $content;

}

return $content;

}

add_filter('the_excerpt_rss', 'rss_post_thumbnail');

add_filter('the_content_feed', 'rss_post_thumbnail');

Set Minimal Comment Limit In WordPress

The following snippet will let you set minimal comment limit in WordPress.

add_filter( 'preprocess_comment', 'minimal_comment_length' );
function minimal_comment_length( $commentdata ) {
$minimalCommentLength = 20;
if ( strlen( trim( $commentdata['comment_content'] ) ) < $minimalCommentLength )
{
wp_die( 'All comments must be at least ' . $minimalCommentLength . ' characters long.' );
}
return $commentdata;
}

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add_filter( 'preprocess_comment', 'minimal_comment_length' );

function minimal_comment_length( $commentdata ) {

$minimalCommentLength = 20;

if ( strlen( trim( $commentdata['comment_content'] ) ) < $minimalCommentLength )

{

wp_die( 'All comments must be at least ' . $minimalCommentLength . ' characters long.' );

}

return $commentdata;

}

Allow PHP in WordPress Text Widgets

The following snippet will allow PHP in WordPress text widget.

function php_text($text) {
if (strpos($text, '<' . '?') !== false) {
ob_start();
eval('?' . '>' . $text);
$text = ob_get_contents();
ob_end_clean();
}
return $text;
}
add_filter('widget_text', 'php_text', 99);

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function php_text($text) {

if (strpos($text, '<' . '?') !== false) {

ob_start();

eval('?' . '>' . $text);

$text = ob_get_contents();

ob_end_clean();

}

return $text;

}

add_filter('widget_text', 'php_text', 99);

Snippets Collection 1

By The Editorial Team

On July 18, 2016

In Snippets

Remove URL from Comment Form

The following snippet will let you remove URL from comment form.

add_filter('comment_form_default_fields', 'unset_url_field');
function unset_url_field($fields){
if(isset($fields['url']))
unset($fields['url']);
return $fields;
}

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add_filter('comment_form_default_fields', 'unset_url_field');

function unset_url_field($fields){

if(isset($fields['url']))

unset($fields['url']);

return $fields;

}

Display a Random Post

The snippet below will let you display some random post.

<ul>
<?php
$rand_posts = get_posts('numberposts=5&orderby=rand');
foreach( $rand_posts as $post ) :
?>
<li><a href="<?php the_permalink(); ?>"><?php the_title(); ?></a></li>
<?php endforeach; ?>
</ul>

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<ul>

<?php

$rand_posts = get_posts('numberposts=5&orderby=rand');

foreach( $rand_posts as $post ) :

?>

<?php endforeach; ?>

</ul>

Customize the Default Avatar

The following snippet will let you customize the default avatar.

<?php
// Create a new options in the WordPress admin
function newgravatar ($avatar_defaults) {
$myavatar = get_bloginfo('template_directory') . '/images/avatary.jpg';
$avatar_defaults[$myavatar] = "Avatary";
return $avatar_defaults;
}
add_filter( 'avatar_defaults', 'newgravatar' );
?>

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<?php

// Create a new options in the WordPress admin

function newgravatar ($avatar_defaults) {

$myavatar = get_bloginfo('template_directory') . '/images/avatary.jpg';

$avatar_defaults[$myavatar] = "Avatary";

return $avatar_defaults;

}

add_filter( 'avatar_defaults', 'newgravatar' );

?>

Create a Custom Post Template

The snippet below will let you create a custom post template.

<?php
/*
Single Post Template: [New Template Name]
Description: You always want to include a description. Be organized!
*/
?>

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<?php

/*

Single Post Template: [New Template Name]

Description: You always want to include a description. Be organized!

*/

?>

Limit Number of Post Revisions

The snippet below will let you limit number of post revisions.

<?php
// Maximum of 3 revisions
define('WP_POST_REVISIONS', 3);
// Disable revisions
define('WP_POST_REVISIONS', false);
?>

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<?php

// Maximum of 3 revisions

define('WP_POST_REVISIONS', 3);

// Disable revisions

define('WP_POST_REVISIONS', false);

?>

Snippets Collection 5

By The Editorial Team

On July 6, 2016

In Snippets

How To Set A Maximum Word Count On Post Titles

Adding the following snippet to your theme’s functions.php file, you will be able to set a maximum word count on post titles.

function maxWord($title){
    global $post;
    $title = $post->post_title;
    if (str_word_count($title) >= 10 ) //set this to the maximum number of words
        wp_die( __('Error: your post title is over the maximum word count.') );
}
add_action('publish_post', 'maxWord');

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function maxWord($title){

global $post;

$title = $post->post_title;

if (str_word_count($title) >= 10 ) //set this to the maximum number of words

wp_die( __('Error: your post title is over the maximum word count.') );

}

add_action('publish_post', 'maxWord');

Snippet Source/Credit: Pippin

Displaying WordPress Excerpt Dynamic Length

The following snippet display the WordPress excerpt dynamic length.

function ms_rp_excerpt($limit) {
		$excerpt = explode(' ', get_the_excerpt(), $limit);
		if (count($excerpt) >= $limit) {
			array_pop($excerpt);
			$excerpt = implode(' ', $excerpt).'...';
		}
		else {
			$excerpt = implode(' ', $excerpt);
		}
		$excerpt = preg_replace('`\[[^\]]*\]`', '', $excerpt);
		return $excerpt;
	}

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function ms_rp_excerpt($limit) {

$excerpt = explode(' ', get_the_excerpt(), $limit);

if (count($excerpt) >= $limit) {

array_pop($excerpt);

$excerpt = implode(' ', $excerpt).'...';

}

else {

$excerpt = implode(' ', $excerpt);

}

$excerpt = preg_replace('`\[[^\]]*\]`', '', $excerpt);

return $excerpt;

}

Snippet Source/Credit: Snipplr

Delete Width And Height Attributes From Image Tag

The following snippet will let you delete both width and height attributes from image tag.

<?php 
$image = wp_get_attachment_image_src( get_post_thumbnail_id( $post->ID ), 'thumbnail' );  
if ($image) : ?>
    <img src="<?php echo $image[0]; ?>" alt="" />
<?php endif; ?>

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<?php

$image = wp_get_attachment_image_src( get_post_thumbnail_id( $post->ID ), 'thumbnail' );

if ($image) : ?>

<?php endif; ?>

Snippet Source/Credit: Stackexchange

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 Know That Which Theme You Are Using

Adding the following lines of code will let you know that which theme you are using.

add_action( 'wp_head', 'show_me_the_template' );
function show_me_the_template() {
	global $template, $current_user, $wp_admin_bar; 
	get_currentuserinfo();
        /* If you have more than one user deny. Be sure to use your user ID! */
	if ( !is_user_logged_in() && $current_user->ID != '1' ) 
		return;
	if ( is_admin_bar_showing() )
		$wp_admin_bar->add_menu( array(
			'parent' => false,
			'id' => 'template',
			'title' => $template,
			'href' => '#'
		));
	else
		print_r( $template );
}

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add_action( 'wp_head', 'show_me_the_template' );

function show_me_the_template() {

global $template, $current_user, $wp_admin_bar;

get_currentuserinfo();

/* If you have more than one user deny. Be sure to use your user ID! */

if ( !is_user_logged_in() && $current_user->ID != '1' )

return;

if ( is_admin_bar_showing() )

$wp_admin_bar->add_menu( array(

'parent' => false,

'id' => 'template',

'title' => $template,

'href' => '#'

));

else

print_r( $template );

}

Snippet Source/Credit: Snipplr

How To Change Editor Font In WordPress

The following snippet will let you change editor font in WordPress.

add_action( 'admin_head-post.php', 'devpress_fix_html_editor_font' );
add_action( 'admin_head-post-new.php', 'devpress_fix_html_editor_font' );
function devpress_fix_html_editor_font() { ?>
<style type="text/css">#editorcontainer #content, #wp_mce_fullscreen { font-family: Georgia, "Times New Roman", "Bitstream Charter", Times, serif; }</style>
<?php }

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add_action( 'admin_head-post.php', 'devpress_fix_html_editor_font' );

add_action( 'admin_head-post-new.php', 'devpress_fix_html_editor_font' );

function devpress_fix_html_editor_font() { ?>

<?php }

Snippet Source/Credit: DevPress

Snippets Collection 4

By The Editorial Team

On June 13, 2016

In Snippets

How To Show Admin Bar Only For Admins

Using the following snippet in your theme’s functions.php file, you will be able to show admin only for admins. Just copy and paste it and you are done.

if (!current_user_can('manage_options')) {
	add_filter('show_admin_bar', '__return_false');
}

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if (!current_user_can('manage_options')) {

add_filter('show_admin_bar', '__return_false');

}

Snippet Source/Credit: Jeff Starr

How To Customize Comment Count Text In WordPress

Using the following snippet, you will be able to customize comment count text in WordPress.

<?php 
    echo get_comments_number_text( "No comments, yet", "One Lonely Comment", "% Happy Comments"); 
?>

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<?php

echo get_comments_number_text( "No comments, yet", "One Lonely Comment", "% Happy Comments");

?>

Snippet Source/Credit: WPSnipp

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 Print Current WordPress Template Being Used

Adding the following snippet to your theme’s functions.php file will let you print current WordPress template being used.

<?php
add_action( 'wp_head', 'admin_print_template_used' );
  function admin_print_template_used() {
  global $template, $current_user, $wp_admin_bar;
  get_currentuserinfo();
  if ( !is_user_logged_in() && $current_user->ID != '1' )
	return;
if ( is_admin_bar_showing() )
	$wp_admin_bar->add_menu( array(
		'parent' => false,
		'id' => 'template',
		'title' => $template,
		'href' => '#'
	));
else
	print_r( $template );
}
// START THE SCRIPT TO PUSH ADMIN BAR TO BOTTOM
	function fb_move_admin_bar() {
    echo '
<style type="text/css">
  body {
  padding-bottom: 28px;
  }
  body.admin-bar #wphead {
     padding-top: 0;
  }
  body.admin-bar #footer {
     padding-bottom: 28px;
  }
  #wpadminbar {
      top: auto !important;
      bottom: 0;
  }
  #wpadminbar .quicklinks .menupop ul {
      bottom: 28px;
  }
</style>';
}
// on backend area
add_action( 'admin_head', 'fb_move_admin_bar' );
// on frontend area
add_action( 'wp_head', 'fb_move_admin_bar' );
?>

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<?php

add_action( 'wp_head', 'admin_print_template_used' );

function admin_print_template_used() {

global $template, $current_user, $wp_admin_bar;

get_currentuserinfo();

if ( !is_user_logged_in() && $current_user->ID != '1' )

return;

if ( is_admin_bar_showing() )

$wp_admin_bar->add_menu( array(

'parent' => false,

'id' => 'template',

'title' => $template,

'href' => '#'

));

else

print_r( $template );

}

// START THE SCRIPT TO PUSH ADMIN BAR TO BOTTOM

function fb_move_admin_bar() {

echo '

body {

padding-bottom: 28px;

}

body.admin-bar #wphead {

padding-top: 0;

}

body.admin-bar #footer {

padding-bottom: 28px;

}

#wpadminbar {

top: auto !important;

bottom: 0;

}

#wpadminbar .quicklinks .menupop ul {

bottom: 28px;

}

</style>';

}

// on backend area

add_action( 'admin_head', 'fb_move_admin_bar' );

// on frontend area

add_action( 'wp_head', 'fb_move_admin_bar' );

?>

How To Make A Subdirectory Accessible With WordPress In Root

Adding the following snippet will let you make a subdirectory accessible with WordPress in root.

<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_URI} ^/(thefoldername).*$ [NC]
RewriteRule . - [L]
</IfModule>

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RewriteEngine On

RewriteBase /

RewriteCond %{REQUEST_URI} ^/(thefoldername).*$ [NC]

RewriteRule . - [L]

</IfModule>

Snippet Source/Credit: DreamHost Wiki

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;

}

?>

Snippets Collection 3

By The Editorial Team

On May 25, 2016

In Snippets

How To Disable WordPress Comments Completely

The following snippet will let you disable WordPress comments completely.

<?php return false; ?>

1	<?php return false; ?>

Snippet Source/Credit: aotearoawebdesign.co.nz

How To Automatically Delete Trash On Daily Basis

When you delete a post or a page or a comment, it goes in a Trash instead of being removed permanently. Using the following snippet will ease you job of deletion and will tell WordPress to automatically delete the trash itself. Simply copy and paste the following lines of code in your wp-config,php file and you are done.

define('EMPTY_TRASH_DAYS', 1);

1	define('EMPTY_TRASH_DAYS', 1);

Note: Make sure that you do replace 1 by X to empty spam comments automatically every X days.

How To Show Content For Logged In Users

Adding this snippet to your theme’s functions.php file will let you show content only for logged in users.

<?php 
add_shortcode("hide","hide_shortcode");  
function hide_shortcode($x,$text=null){
    if(!is_user_logged_in()){ 
        return "You have to been registered and logged in to see this content"; 
    }else{ 
        return do_shortcode($text); 
    } 
} 
?>

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<?php

add_shortcode("hide","hide_shortcode");

function hide_shortcode($x,$text=null){

if(!is_user_logged_in()){

return "You have to been registered and logged in to see this content";

}else{

return do_shortcode($text);

}

?>

Snippet Source/Credit: Snipplr

How To Redirect Users To A Random Post

The following snippet will let you redirect users to a random post.

// set arguments for get_posts()
$args = array(
    'numberposts' => 1,
    'orderby' => 'rand'
);

// get a random post from the database
$my_random_post = get_posts ( $args );

// process the database request through a foreach loop
foreach ( $my_random_post as $post ) {
  // redirect the user to the random post
  wp_redirect ( get_permalink ( $post->ID ) );
  exit;
}

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// set arguments for get_posts()

$args = array(

'numberposts' => 1,

'orderby' => 'rand'

);

// get a random post from the database

$my_random_post = get_posts ( $args );

// process the database request through a foreach loop

foreach ( $my_random_post as $post ) {

// redirect the user to the random post

wp_redirect ( get_permalink ( $post->ID ) );

exit;

}

Snippet Source/Credit: Smashing Magazine

How To Have Custom Favicon For Your WP-Admin

Using the following snippet, you will be able to have custom favicon for your WP-admin.

function admin_favicon() {
 echo '<link rel="shortcut icon" type="image/x-icon" href="' . get_bloginfo('template_directory') . '/images/favicon.ico" />';
}
add_action( 'admin_head', 'admin_favicon' );

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function admin_favicon() {

echo '<link rel="shortcut icon" type="image/x-icon" href="' . get_bloginfo('template_directory') . '/images/favicon.ico" />';

}

add_action( 'admin_head', 'admin_favicon' );

Snippet Source/Credit: Snipplr

Snippets Collection 2

By The Editorial Team

On May 11, 2016

In Snippets

How To Add A Logo To A Template

Using the following snippet, you will be able to add a logo to a template.

<img src="<?php echo get_stylesheet_directory_uri()?>/images/logo.png" alt="My Logo">

1	<img src="<?php echo get_stylesheet_directory_uri()?>/images/logo.png" alt="My Logo">

Snippet Source/Credit: WPSnipp

How to count retweets in full text

Adding the following snippet in your theme’s functions.php file, you will be able to count retweets in full text.

function tweetCount($url) {
    $content = file_get_contents("http://api.tweetmeme.com/url_info?url=".$url);
    $element = new SimpleXmlElement($content);
    $retweets = $element->story->url_count;
    if($retweets){
        return $retweets;
    } else {
        return 0;
    }
}

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function tweetCount($url) {

$content = file_get_contents("http://api.tweetmeme.com/url_info?url=".$url);

$element = new SimpleXmlElement($content);

$retweets = $element->story->url_count;

if($retweets){

return $retweets;

} else {

return 0;

}

Once saved copy and paste the following lines of snippets in your theme’s single.php file:

$rt = tweetCount(get_permalink());
echo "Retweeted ".$rt." times.";

1 2	$rt = tweetCount(get_permalink()); echo "Retweeted ".$rt." times.";

Snippet Source/Credit: WPRecipes

How To Automatically Link Twitter Usernames In WordPress Posts

Using the following snippet, you will be able to automatically link Twitter usernames in WordPress posts.

function content_twitter_mention($content) {
        return preg_replace('/([^a-zA-Z0-9-_&])@([0-9a-zA-Z_]+)/', "$1@$2", $content);
}
add_filter('the_content', 'content_twitter_mention');   
add_filter('comment_text', 'content_twitter_mention');

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function content_twitter_mention($content) {

return preg_replace('/([^a-zA-Z0-9-_&])@([0-9a-zA-Z_]+)/', "$1@$2", $content);

}

add_filter('the_content', 'content_twitter_mention');

add_filter('comment_text', 'content_twitter_mention');

Snippet Source/Credit: Paulund.co.uk

How To Block Admin For All Users In WordPress

Using the following snippet you will be able to block admin for all users in WordPress.

add_action( 'init', 'blockusers_wps_init' );
    function blockusers_wps_init() {
            if ( is_admin() && ! current_user_can( 'administrator' ) ) {
                    wp_redirect( home_url() );
                    exit;
            }
    }

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add_action( 'init', 'blockusers_wps_init' );

function blockusers_wps_init() {

if ( is_admin() && ! current_user_can( 'administrator' ) ) {

wp_redirect( home_url() );

exit;

}

Snippet Source/Credit: WPSnipp

How To Rename WordPress Folder

Using the following snippet, you will be able to rename WordPress folder.

define ( 'WP_CONTENT_FOLDERNAME', 'public' );
define ( 'WP_CONTENT_DIR', ABSPATH . WP_CONTENT_FOLDERNAME );
define ( 'WP_SITEURL', 'http://' . $_SERVER['HTTP_HOST'] . '/' );
define ( 'WP_CONTENT_URL', WP_SITEURL . WP_CONTENT_FOLDERNAME );

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define ( 'WP_CONTENT_FOLDERNAME', 'public' );

define ( 'WP_CONTENT_DIR', ABSPATH . WP_CONTENT_FOLDERNAME );

define ( 'WP_SITEURL', 'http://' . $_SERVER['HTTP_HOST'] . '/' );

define ( 'WP_CONTENT_URL', WP_SITEURL . WP_CONTENT_FOLDERNAME );

Snippet Source/Credit: Snipplr

Tag: Code Page 1 of 3

Author Bio Excerpt

Disable Self Trackbacks

Remove Login Shake

Only Show Admin Bar To Administrators

QR Code With Article Link

Disable Plugin Updates

List all categories with posts

Override WordPress and Site URL

Get the first link in post

Check if sidebar has widgets

Redirect your Author archive link to your “About” page

Change Image Path Only

Add Thumbnails in Manage Posts/Pages List

Checks if the visitor is from mobile device

Add titles to previous_post_link & next_post_link

Temporary Maintenance

Add featured images to WordPress feeds

Set Minimal Comment Limit In WordPress

Allow PHP in WordPress Text Widgets

Remove URL from Comment Form

Display a Random Post

Customize the Default Avatar

Create a Custom Post Template

Limit Number of Post Revisions

How To Set A Maximum Word Count On Post Titles

Displaying WordPress Excerpt Dynamic Length

Delete Width And Height Attributes From Image Tag

How To Set Basic Tag Cloud In WordPress

How To Know That Which Theme You Are Using

How To Change Editor Font In WordPress

How To Show Admin Bar Only For Admins

How To Customize Comment Count Text In WordPress

How To Deregister All In One Event Calendar In WordPress

How To Print Current WordPress Template Being Used

How To Make A Subdirectory Accessible With WordPress In Root

How To Disable Sidebars And Widgets On Page Template In WordPress

How To Disable WordPress Comments Completely

How To Automatically Delete Trash On Daily Basis

How To Show Content For Logged In Users

How To Redirect Users To A Random Post

How To Have Custom Favicon For Your WP-Admin

How To Add A Logo To A Template

How to count retweets in full text

How To Automatically Link Twitter Usernames In WordPress Posts

How To Block Admin For All Users In WordPress

How To Rename WordPress Folder