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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 |
|---|---|
| 1691 | $raw_excerpt = $text; |
| 1692 | if ( '' == $text ) { |
| 1693 | $text = get_the_content(''); |
| 1694 | |
| 1695 | $text = strip_shortcodes( $text ); |
| 1696 | |
| 1697 | $text = apply_filters('the_content', $text); |
| 1698 | $text = str_replace(']]>', ']]>', $text); |
| 1699 | $text = strip_tags($text); |
| 1700 | $excerpt_length = apply_filters('excerpt_length', 55); |
| 1701 | $words = explode(' ', $text, $excerpt_length + 1); |
| 1702 | if (count($words) > $excerpt_length) { |
| 1703 | array_pop($words); |
| 1704 | array_push($words, '[...]'); |
| 1705 | $text = implode(' ', $words); |
| 1706 | } |
| 1707 | } |
| 1708 | return apply_filters('wp_trim_excerpt', $text, $raw_excerpt); |
| 1709 | } |