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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 |
|---|---|
| 1264 | $value = preg_replace('/[^0-9:.-]/', '', $value); // strips slashes |
| 1265 | break; |
| 1266 | |
| 1267 | case 'siteurl': |
| 1268 | case 'home': |
| 1269 | $value = stripslashes($value); |
| 1270 | $value = clean_url($value); |
| 1271 | break; |
| 1272 | default : |
| 1273 | $value = apply_filters("sanitize_option_{$option}", $value, $option); |
| 1274 | break; |
| 1275 | } |
| 1276 | |
| 1277 | return $value; |
| 1278 | } |
| 1279 | |
| 1280 | function wp_parse_str( $string, &$array ) { |
| 1281 | parse_str( $string, $array ); |
| 1282 | if ( get_magic_quotes_gpc() ) |