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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 |
|---|---|
| 816 | |
| 817 | $response = parent::prepare_item_for_response( $post, $request ); |
| 818 | $fields = $this->get_fields_for_response( $request ); |
| 819 | $data = $response->get_data(); |
| 820 | |
| 821 | if ( in_array( 'description', $fields, true ) ) { |
| 822 | $data['description'] = array( |
| 823 | 'raw' => $post->post_content, |
| 824 | /** This filter is documented in wp-includes/post-template.php */ |
| 825 | 'rendered' => apply_filters( 'the_content', $post->post_content ), |
| 826 | ); |
| 827 | } |
| 828 | |
| 829 | if ( in_array( 'caption', $fields, true ) ) { |
| 830 | /** This filter is documented in wp-includes/post-template.php */ |
| 831 | $caption = apply_filters( 'get_the_excerpt', $post->post_excerpt, $post ); |
| 832 | |
| 833 | /** This filter is documented in wp-includes/post-template.php */ |
| 834 | $caption = apply_filters( 'the_excerpt', $caption ); |