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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 |
|---|---|
| 768 | $since = sprintf(__ngettext('%s day', '%s days', $days), $days); |
| 769 | } |
| 770 | return $since; |
| 771 | } |
| 772 | |
| 773 | function wp_trim_excerpt($text) { // Fakes an excerpt if needed |
| 774 | global $post; |
| 775 | if ( '' == $text ) { |
| 776 | $text = get_the_content(''); |
| 777 | $text = apply_filters('the_content', $text); |
| 778 | $text = str_replace(']]>', ']]>', $text); |
| 779 | $text = strip_tags($text); |
| 780 | $excerpt_length = 55; |
| 781 | $words = explode(' ', $text, $excerpt_length + 1); |
| 782 | if (count($words) > $excerpt_length) { |
| 783 | array_pop($words); |
| 784 | array_push($words, '[...]'); |
| 785 | $text = implode(' ', $words); |
| 786 | } |