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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 |
|---|---|
| 3439 | |
| 3440 | /** |
| 3441 | * Filter an option value following sanitization. |
| 3442 | * |
| 3443 | * @since 2.3.0 |
| 3444 | * |
| 3445 | * @param string $value The sanitized option value. |
| 3446 | * @param string $option The option name. |
| 3447 | */ |
| 3448 | $value = apply_filters( "sanitize_option_{$option}", $value, $option ); |
| 3449 | |
| 3450 | return $value; |
| 3451 | } |
| 3452 | |
| 3453 | /** |
| 3454 | * Parses a string into variables to be stored in an array. |
| 3455 | * |
| 3456 | * Uses {@link http://www.php.net/parse_str parse_str()} and stripslashes if |
| 3457 | * {@link http://www.php.net/magic_quotes magic_quotes_gpc} is on. |