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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 |
|---|---|
| 4803 | * Filters an option value following sanitization. |
| 4804 | * |
| 4805 | * @since 2.3.0 |
| 4806 | * @since 4.3.0 Added the `$original_value` parameter. |
| 4807 | * |
| 4808 | * @param string $value The sanitized option value. |
| 4809 | * @param string $option The option name. |
| 4810 | * @param string $original_value The original value passed to the function. |
| 4811 | */ |
| 4812 | return apply_filters( "sanitize_option_{$option}", $value, $option, $original_value ); |
| 4813 | } |
| 4814 | |
| 4815 | /** |
| 4816 | * Maps a function to all non-iterable elements of an array or an object. |
| 4817 | * |
| 4818 | * This is similar to `array_walk_recursive()` but acts upon objects too. |
| 4819 | * |
| 4820 | * @since 4.4.0 |
| 4821 | * |