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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )
apply_filters( "hook_name", "what_to_filter" )
.Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
Line | Code |
---|---|
521 | </div> |
522 | <?php |
523 | /** |
524 | * Fires before the permalink field in the edit form. |
525 | * |
526 | * @since 4.1.0 |
527 | * |
528 | * @param WP_Post $post Post object. |
529 | */ |
530 | do_action( 'edit_form_before_permalink', $post ); |
531 | ?> |
532 | <div class="inside"> |
533 | <?php |
534 | if ( $viewable ) : |
535 | $sample_permalink_html = $post_type_object->public ? get_sample_permalink_html( $post->ID ) : ''; |
536 |
|
537 | // As of 4.4, the Get Shortlink button is hidden by default. |
538 | if ( has_filter( 'pre_get_shortlink' ) || has_filter( 'get_shortlink' ) ) { |
539 | $shortlink = wp_get_shortlink( $post->ID, 'post' ); |