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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 |
---|---|
533 | } |
534 |
|
535 | if ( in_array( 'slug', $fields, true ) ) { |
536 | $data['slug'] = $post->post_name; |
537 | } |
538 |
|
539 | if ( in_array( 'guid', $fields, true ) ) { |
540 | $data['guid'] = array( |
541 | /** This filter is documented in wp-includes/post-template.php */ |
542 | 'rendered' => apply_filters( 'get_the_guid', $post->guid, $post->ID ), |
543 | 'raw' => $post->guid, |
544 | ); |
545 | } |
546 |
|
547 | if ( in_array( 'title', $fields, true ) ) { |
548 | $data['title'] = array( |
549 | 'raw' => $post->post_title, |
550 | 'rendered' => get_the_title( $post->ID ), |
551 | ); |