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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 |
---|---|
1324 | function wp_trim_excerpt($text) { |
1325 | if ( '' == $text ) { |
1326 | $text = get_the_content(''); |
1327 |
|
1328 | $text = strip_shortcodes( $text ); |
1329 |
|
1330 | $text = apply_filters('the_content', $text); |
1331 | $text = str_replace(']]>', ']]>', $text); |
1332 | $text = strip_tags($text); |
1333 | $excerpt_length = apply_filters('excerpt_length', 55); |
1334 | $words = explode(' ', $text, $excerpt_length + 1); |
1335 | if (count($words) > $excerpt_length) { |
1336 | array_pop($words); |
1337 | array_push($words, '[...]'); |
1338 | $text = implode(' ', $words); |
1339 | } |
1340 | } |
1341 | return $text; |
1342 | } |