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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 |
|---|---|
| 841 | return $since; |
| 842 | } |
| 843 | |
| 844 | function wp_trim_excerpt($text) { // Fakes an excerpt if needed |
| 845 | if ( '' == $text ) { |
| 846 | $text = get_the_content(''); |
| 847 | |
| 848 | $text = strip_shortcodes( $text ); |
| 849 | |
| 850 | $text = apply_filters('the_content', $text); |
| 851 | $text = str_replace(']]>', ']]>', $text); |
| 852 | $text = strip_tags($text); |
| 853 | $excerpt_length = 55; |
| 854 | $words = explode(' ', $text, $excerpt_length + 1); |
| 855 | if (count($words) > $excerpt_length) { |
| 856 | array_pop($words); |
| 857 | array_push($words, '[...]'); |
| 858 | $text = implode(' ', $words); |
| 859 | } |