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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 |
|---|---|
| 691 | $data['description'] = array( |
| 692 | 'raw' => $post->post_content, |
| 693 | /** This filter is documented in wp-includes/post-template.php */ |
| 694 | 'rendered' => apply_filters( 'the_content', $post->post_content ), |
| 695 | ); |
| 696 | } |
| 697 | |
| 698 | if ( in_array( 'caption', $fields, true ) ) { |
| 699 | /** This filter is documented in wp-includes/post-template.php */ |
| 700 | $caption = apply_filters( 'get_the_excerpt', $post->post_excerpt, $post ); |
| 701 | |
| 702 | /** This filter is documented in wp-includes/post-template.php */ |
| 703 | $caption = apply_filters( 'the_excerpt', $caption ); |
| 704 | |
| 705 | $data['caption'] = array( |
| 706 | 'raw' => $post->post_excerpt, |
| 707 | 'rendered' => $caption, |
| 708 | ); |
| 709 | } |