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How To Add a Custom Field to a Post or Page When It Is Published

Snippets by IsItWP

Are you looking for a way to add a custom field to a post or page when it is published? This snippet will add a custom field, with a name and value of your choice, to a post or page when it is published.

Instructions:

  1. Add this code to your theme’s functions.php file or in a site-specific plugin.
  2. Replace the FIELD_NAME text and the CUSTOM VALUE text to the name and value of your choice.
add_action('publish_page', 'add_custom_field_automatically');
add_action('publish_post'. 'add_custom_field_automatically');

function add_custom_field_automatically($post_ID) {
    global $wpdb;
    if(!wp_is_post_revision($post_ID)) {
        add_post_meta($post_ID, 'FIELD_NAME', 'CUSTOM VALUE', true);
    }
}

Note: If this is your first time adding code snippets in WordPress, then please refer to our guide on how to properly copy / paste code snippets in WordPress, so you don’t accidentally break your site.

If you liked this code snippet, please consider checking out our other articles on the site like: 7 Best Drag and Drop WordPress Page Builders Compared.

Comments  Leave a Reply

  1. Nice! And I guess we can use published_to_post hook to change that value. Or even better:


    function post_unpublished( $new_status, $old_status, $post ) {
    if ( $old_status == 'publish' && $new_status != 'publish' ) {
    // Post is unpublished
    }
    }
    add_action( 'transition_post_status', 'post_unpublished', 10, 3 );

    Any better way to do it?

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