Best Of WordPress Snippets RoundUp – 3

How To Remove WordPress Version From Head And Feeds

Using the following snippet, you will be able to remove WordPress version from head and feeds.

function complete_version_removal() {
    return '';
}
add_filter('the_generator', 'complete_version_removal');

function complete_version_removal() {

return '';

}

add_filter('the_generator', 'complete_version_removal');

Snippet Source/Credit: Snipplr

How To List All Available WordPress Roles

Using the following snippet, you will be able to list all available WordPress roles.

$roles_obj = new WP_Roles();
$roles_names_array = $roles_obj->get_names();
echo '<select name="role">';
foreach ($roles_names_array as $role_name) {
        echo '<option>'.$role_name.'</option>';
}
echo '</select>';

$roles_obj = new WP_Roles();

$roles_names_array = $roles_obj->get_names();

echo '<select name="role">';

foreach ($roles_names_array as $role_name) {

echo '<option>'.$role_name.'</option>';

}

echo '</select>';

Snippet Source/Credit: WPSnipp

How To Have A Featured Image Before You Can Publish Post In WordPress

Using the following snippet, you will be able to have a featured image before you can publish post in WordPress.

add_action('save_post', 'wpds_check_thumbnail');
add_action('admin_notices', 'wpds_thumbnail_error');
function wpds_check_thumbnail($post_id) {
    // change to any custom post type
    if(get_post_type($post_id) != 'post')
        return;
    if ( !has_post_thumbnail( $post_id ) ) {
        // set a transient to show the users an admin message
        set_transient( "has_post_thumbnail", "no" );
        // unhook this function so it doesn't loop infinitely
        remove_action('save_post', 'wpds_check_thumbnail');
        // update the post set it to draft
        wp_update_post(array('ID' => $post_id, 'post_status' => 'draft'));
        add_action('save_post', 'wpds_check_thumbnail');
    } else {
        delete_transient( "has_post_thumbnail" );
    }
}
function wpds_thumbnail_error()
{
    // check if the transient is set, and display the error message
    if ( get_transient( "has_post_thumbnail" ) == "no" ) {
        echo "<div id='message' class='error'><p><strong>You must select Featured Image. Your Post is saved but it can not be published.</strong></p></div>";
        delete_transient( "has_post_thumbnail" );
    }
}

add_action('save_post', 'wpds_check_thumbnail');

add_action('admin_notices', 'wpds_thumbnail_error');

function wpds_check_thumbnail($post_id) {

// change to any custom post type

if(get_post_type($post_id) != 'post')

return;

if ( !has_post_thumbnail( $post_id ) ) {

// set a transient to show the users an admin message

set_transient( "has_post_thumbnail", "no" );

// unhook this function so it doesn't loop infinitely

remove_action('save_post', 'wpds_check_thumbnail');

// update the post set it to draft

wp_update_post(array('ID' => $post_id, 'post_status' => 'draft'));

add_action('save_post', 'wpds_check_thumbnail');

} else {

delete_transient( "has_post_thumbnail" );

}

function wpds_thumbnail_error()

{

// check if the transient is set, and display the error message

if ( get_transient( "has_post_thumbnail" ) == "no" ) {

echo "<div id='message' class='error'><p><strong>You must select Featured Image. Your Post is saved but it can not be published.</strong></p></div>";

delete_transient( "has_post_thumbnail" );

}

Snippet Source/Credit: WPDevSnippets

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"); 
?>

<?php

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

Snippet Source/Credit: WPSnipp

How To Display Posts In Random Order In WordPress

Using the following snippet, you will be able to display posts in random order in WordPress.

session_start();
add_filter( 'posts_orderby', 'randomise_with_pagination' );
function randomise_with_pagination( $orderby ) {
        if( is_front_page() ) {
                // Reset seed on load of initial archive page
                if( ! get_query_var( 'paged' ) || get_query_var( 'paged' ) == 0 || get_query_var( 'paged' ) == 1 ) {
                        if( isset( $_SESSION['seed'] ) ) {
                                unset( $_SESSION['seed'] );
                        }
                }
                // Get seed from session variable if it exists
                $seed = false;
                if( isset( $_SESSION['seed'] ) ) {
                        $seed = $_SESSION['seed'];
                }
                // Set new seed if none exists
                if ( ! $seed ) {
                        $seed = rand();
                        $_SESSION['seed'] = $seed;
                }
                // Update ORDER BY clause to use seed
                $orderby = 'RAND(' . $seed . ')';
        }
        return $orderby;
}

session_start();

add_filter( 'posts_orderby', 'randomise_with_pagination' );

function randomise_with_pagination( $orderby ) {

if( is_front_page() ) {

// Reset seed on load of initial archive page

if( ! get_query_var( 'paged' ) || get_query_var( 'paged' ) == 0 || get_query_var( 'paged' ) == 1 ) {

if( isset( $_SESSION['seed'] ) ) {

unset( $_SESSION['seed'] );

}

// Get seed from session variable if it exists

$seed = false;

if( isset( $_SESSION['seed'] ) ) {

$seed = $_SESSION['seed'];

}

// Set new seed if none exists

if ( ! $seed ) {

$seed = rand();

$_SESSION['seed'] = $seed;

}

// Update ORDER BY clause to use seed

$orderby = 'RAND(' . $seed . ')';

}

return $orderby;

}