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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 |
|---|---|
| 746 | $since = sprintf( __('%s days'), $days ); |
| 747 | } |
| 748 | return $since; |
| 749 | } |
| 750 | |
| 751 | function wp_trim_excerpt($text) { // Fakes an excerpt if needed |
| 752 | global $post; |
| 753 | if ( '' == $text ) { |
| 754 | $text = $post->post_content; |
| 755 | $text = apply_filters('the_content', $text); |
| 756 | $text = str_replace(']]>', ']]>', $text); |
| 757 | $text = strip_tags($text); |
| 758 | $excerpt_length = 55; |
| 759 | $words = explode(' ', $text, $excerpt_length + 1); |
| 760 | if (count($words) > $excerpt_length) { |
| 761 | array_pop($words); |
| 762 | array_push($words, '[...]'); |
| 763 | $text = implode(' ', $words); |
| 764 | } |