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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 |
|---|---|
| 2904 | |
| 2905 | case 'permalink_structure': |
| 2906 | case 'category_base': |
| 2907 | case 'tag_base': |
| 2908 | $value = esc_url_raw( $value ); |
| 2909 | $value = str_replace( 'http://', '', $value ); |
| 2910 | break; |
| 2911 | } |
| 2912 | |
| 2913 | $value = apply_filters("sanitize_option_{$option}", $value, $option); |
| 2914 | |
| 2915 | return $value; |
| 2916 | } |
| 2917 | |
| 2918 | /** |
| 2919 | * Parses a string into variables to be stored in an array. |
| 2920 | * |
| 2921 | * Uses {@link http://www.php.net/parse_str parse_str()} and stripslashes if |
| 2922 | * {@link http://www.php.net/magic_quotes magic_quotes_gpc} is on. |