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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 |
|---|---|
| 703 | $since = sprintf( __('%s days'), $days ); |
| 704 | } |
| 705 | return $since; |
| 706 | } |
| 707 | |
| 708 | function wp_trim_excerpt($text) { // Fakes an excerpt if needed |
| 709 | global $post; |
| 710 | if ( '' == $text ) { |
| 711 | $text = $post->post_content; |
| 712 | $text = apply_filters('the_content', $text); |
| 713 | $text = str_replace(']]>', ']]>', $text); |
| 714 | $text = strip_tags($text); |
| 715 | $excerpt_length = 55; |
| 716 | $words = explode(' ', $text, $excerpt_length + 1); |
| 717 | if (count($words) > $excerpt_length) { |
| 718 | array_pop($words); |
| 719 | array_push($words, '[...]'); |
| 720 | $text = implode(' ', $words); |
| 721 | } |