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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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592 |
|
593 | /** |
594 | * Filter the default post excerpt initially used in the "Write Post" form. |
595 | * |
596 | * @since 1.5.0 |
597 | * |
598 | * @param string $post_excerpt Default post excerpt. |
599 | * @param WP_Post $post Post object. |
600 | */ |
601 | $post->post_excerpt = apply_filters( 'default_excerpt', $post_excerpt, $post ); |
602 |
|
603 | return $post; |
604 | } |
605 |
|
606 | /** |
607 | * Determine if a post exists based on title, content, and date |
608 | * |
609 | * @since 2.0.0 |
610 | * |