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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 |
|---|---|
| 1491 | * @return mixed |
| 1492 | */ |
| 1493 | public function capture_filter_pre_get_option( $value ) { |
| 1494 | $option_name = preg_replace( '/^pre_option_/', '', current_filter() ); |
| 1495 | |
| 1496 | if ( isset( $this->_captured_options[$option_name] ) ) { |
| 1497 | $value = $this->_captured_options[$option_name]; |
| 1498 | |
| 1499 | /** This filter is documented in wp-includes/option.php */ |
| 1500 | $value = apply_filters( 'option_' . $option_name, $value ); |
| 1501 | } |
| 1502 | |
| 1503 | return $value; |
| 1504 | } |
| 1505 | |
| 1506 | /** |
| 1507 | * Undo any changes to the options since options capture began. |
| 1508 | * |
| 1509 | * @since 3.9.0 |