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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 |
|---|---|
| 1199 | $value = preg_replace('/[^0-9:.-]/', '', $value); // strips slashes |
| 1200 | break; |
| 1201 | |
| 1202 | case 'siteurl': |
| 1203 | case 'home': |
| 1204 | $value = stripslashes($value); |
| 1205 | $value = clean_url($value); |
| 1206 | break; |
| 1207 | default : |
| 1208 | $value = apply_filters("sanitize_option_{$option}", $value, $option); |
| 1209 | break; |
| 1210 | } |
| 1211 | |
| 1212 | return $value; |
| 1213 | } |
| 1214 | |
| 1215 | function wp_parse_str( $string, &$array ) { |
| 1216 | parse_str( $string, $array ); |
| 1217 | if ( get_magic_quotes_gpc() ) |