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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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492 | * @access protected |
493 | * |
494 | * @param string $excerpt The post excerpt. |
495 | * @param WP_Post $post Post revision object. |
496 | * @return string Prepared excerpt or empty string. |
497 | */ |
498 | protected function prepare_excerpt_response( $excerpt, $post ) { |
499 |
|
500 | /** This filter is documented in wp-includes/post-template.php */ |
501 | $excerpt = apply_filters( 'the_excerpt', $excerpt, $post ); |
502 |
|
503 | if ( empty( $excerpt ) ) { |
504 | return ''; |
505 | } |
506 |
|
507 | return $excerpt; |
508 | } |
509 | } |
510 |
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