Best Of WordPress Snippets RoundUp – 1

How To Show All Custom Fields For Each WordPress Posts

Using the following snippet, you will be able to show all custom fields for each of WordPress posts.

add_action( 'all_admin_notices', 'wpsnipp_show_all_custom_fields' );
function wpsnipp_show_all_custom_fields() {
    if ( isset( $_GET['post'] ) ) {
        $post_id = absint( $_GET['post'] );
        ?>
        <div id="message" class="updated">
            <h3>All post meta:</h3>
            <xmp><?php print_r( get_post_meta( $post_id ) ); ?></xmp>
        </div>
        <?php
    }
}

add_action( 'all_admin_notices', 'wpsnipp_show_all_custom_fields' );

function wpsnipp_show_all_custom_fields() {

if ( isset( $_GET['post'] ) ) {

$post_id = absint( $_GET['post'] );

</div>

<?php

}

Snippet Source/Credit: WPSnipp

How To Show Or Hide Widgets On Specific WordPress Pages

Using the following snippet, you will be able to show or hide widgets on specific WordPress pages.

add_filter( 'widget_display_callback', 'hide_widget_pages', 10, 3 );
function hide_widget_pages( $instance, $widget, $args ) {
  if ( $widget->id_base == 'pages' ) { // change 'pages' to widget name
     if ( !is_page( 'contact' ) ) {    // change page name
         return false;
     }
  }
}

add_filter( 'widget_display_callback', 'hide_widget_pages', 10, 3 );

function hide_widget_pages( $instance, $widget, $args ) {

if ( $widget->id_base == 'pages' ) { // change 'pages' to widget name

if ( !is_page( 'contact' ) ) { // change page name

return false;

}

Snippet Source/Credit: WPSnipp

WordPress Display Page

Using the following snippet, you will put page directly into your page template.

<?php
 $id = 1; // page ID to display
 $p = get_page($id);
 echo apply_filters('the_content', $p->post_content);
 ?>

<?php

$id = 1; // page ID to display

$p = get_page($id);

echo apply_filters('the_content', $p->post_content);

Snippet Source/Credit: Snipplr

WordPress Login Screen

The following snippet will let you change login logo, login URL and login title.

// Change login logo
function custom_login_logo() {
  echo '<style type="text/css">h1 a { background: url('.get_bloginfo('template_directory').'http://cdn.css-tricks.com/images/logo-login.gif) 50% 50% no-repeat !important; }</style>';
}
add_action('login_head', 'custom_login_logo');
 //  Change logo URL
function change_wp_login_url() {
  return bloginfo('url');
}
add_filter('login_headerurl', 'change_wp_login_url');
 // Change login title
function change_wp_login_title() {
  return get_option('blogname');
}
add_filter('login_headertitle', 'change_wp_login_title');

// Change login logo

function custom_login_logo() {

echo '<style type="text/css">h1 a { background: url('.get_bloginfo('template_directory').'http://cdn.css-tricks.com/images/logo-login.gif) 50% 50% no-repeat !important; }</style>';

}

add_action('login_head', 'custom_login_logo');

// Change logo URL

function change_wp_login_url() {

return bloginfo('url');

}

add_filter('login_headerurl', 'change_wp_login_url');

// Change login title

function change_wp_login_title() {

return get_option('blogname');

}

add_filter('login_headertitle', 'change_wp_login_title');

Snippet Source/Credit: CSS-Tricks

How To Rewrite pagination slug in WordPress

The following snippet will let you rewrite pagination slug in WordPress.

function custom_pagination_base()
{
    global $wp_rewrite;
     $wp_rewrite->pagination_base = 'p';
     $wp_rewrite->flush_rules();
} 
add_action('init', 'custom_pagination_base', 1);

function custom_pagination_base()

{

global $wp_rewrite;

$wp_rewrite->pagination_base = 'p';

$wp_rewrite->flush_rules();

}

add_action('init', 'custom_pagination_base', 1);