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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 |
|---|---|
| 114 | } |
| 115 | $string = strtr($string, $chars['in'], $chars['out']); |
| 116 | $double_chars['in'] = array(chr(140), chr(156), chr(198), chr(208), chr(222), chr(223), chr(230), chr(240), chr(254)); |
| 117 | $double_chars['out'] = array('OE', 'oe', 'AE', 'DH', 'TH', 'ss', 'ae', 'dh', 'th'); |
| 118 | $string = str_replace($double_chars['in'], $double_chars['out'], $string); |
| 119 | return $string; |
| 120 | } |
| 121 | |
| 122 | function sanitize_title($title) { |
| 123 | $title = do_action('sanitize_title', $title); |
| 124 | |
| 125 | return $title; |
| 126 | } |
| 127 | |
| 128 | function sanitize_title_with_dashes($title) { |
| 129 | $title = remove_accents($title); |
| 130 | $title = strtolower($title); |
| 131 | $title = preg_replace('/&.+?;/', '', $title); // kill entities |
| 132 | $title = preg_replace('/[^a-z0-9 _-]/', '', $title); |