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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 |
|---|---|
| 3683 | function wp_trim_excerpt( $text = '' ) { |
| 3684 | $raw_excerpt = $text; |
| 3685 | if ( '' == $text ) { |
| 3686 | $text = get_the_content( '' ); |
| 3687 | |
| 3688 | $text = strip_shortcodes( $text ); |
| 3689 | $text = excerpt_remove_blocks( $text ); |
| 3690 | |
| 3691 | /** This filter is documented in wp-includes/post-template.php */ |
| 3692 | $text = apply_filters( 'the_content', $text ); |
| 3693 | $text = str_replace( ']]>', ']]>', $text ); |
| 3694 | |
| 3695 | /** |
| 3696 | * Filters the number of words in an excerpt. |
| 3697 | * |
| 3698 | * @since 2.7.0 |
| 3699 | * |
| 3700 | * @param int $number The number of words. Default 55. |
| 3701 | */ |