Function and usage of generic_ping() in wordpress

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    2024-01-06T10:11:54+00:00

    The generic_ping() function in WordPress is a tool used for sending pings to various ping service websites. Pinging is a mechanism by which a blog notifies various search engines and directories that its content has been updated. This helps in increasing the visibility and accessibility of the blog's content on the internet. Here's a detailed explanation of the function and its usage:

    Function Declaration:

    generic_ping( int $post_id ): int
    

    Purpose:

    • Function: Sends pings to all of the ping site services listed in the WordPress settings.
    • Usage: Typically used to notify search engines and directory services when a new post is published or an existing post is updated.

    Parameters:

    • $post_id (int, required): The ID of the post for which the ping is being sent.

    Return Value:

    • int: Returns the same post ID as provided in the parameter. This is useful for confirming that the ping was attempted for the specified post ID.

    Sample Usage:

    add_action( 'publish_post', 'send_custom_ping' );
    
    function send_custom_ping( $post_id ) {
        // Check if the post is not a revision
        if ( !wp_is_post_revision( $post_id ) ) {
            // Send ping
            $returned_id = generic_ping( $post_id );
    
            // Optionally, you can check the returned ID
            if( $returned_id == $post_id ) {
                // Ping was successful for the post
                // Additional actions can be performed here
            }
        }
    }
    

    In this example, the generic_ping() function is hooked to the publish_post action in WordPress. This means the function gets called every time a post is published. The $post_id parameter is passed to generic_ping(), and the function attempts to send out pings. The return value is checked to ensure that the ping was sent for the correct post.

    Important Notes:

    • It's essential to ensure that the generic_ping() function is not called excessively or for every minor edit, as this might lead to your website being flagged as spam by ping services.
    • Customization can be done by filtering the list of ping services in the WordPress settings.

    This function helps in improving the SEO and reach of your WordPress content by ensuring that search engines are quickly informed about updates to your site.

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