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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 |
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817 | * @since 4.7.0 |
818 | * |
819 | * @param string $excerpt The post excerpt. |
820 | * @param WP_Post $post Post revision object. |
821 | * @return string Prepared excerpt or empty string. |
822 | */ |
823 | protected function prepare_excerpt_response( $excerpt, $post ) { |
824 |
|
825 | /** This filter is documented in wp-includes/post-template.php */ |
826 | $excerpt = apply_filters( 'the_excerpt', $excerpt, $post ); |
827 |
|
828 | if ( empty( $excerpt ) ) { |
829 | return ''; |
830 | } |
831 |
|
832 | return $excerpt; |
833 | } |
834 | } |
835 |
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