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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 |
|---|---|
| 1544 | * @return mixed Filtered option value. |
| 1545 | */ |
| 1546 | public function capture_filter_pre_get_option( $value ) { |
| 1547 | $option_name = preg_replace( '/^pre_option_/', '', current_filter() ); |
| 1548 | |
| 1549 | if ( isset( $this->_captured_options[ $option_name ] ) ) { |
| 1550 | $value = $this->_captured_options[ $option_name ]; |
| 1551 | |
| 1552 | /** This filter is documented in wp-includes/option.php */ |
| 1553 | $value = apply_filters( 'option_' . $option_name, $value ); |
| 1554 | } |
| 1555 | |
| 1556 | return $value; |
| 1557 | } |
| 1558 | |
| 1559 | /** |
| 1560 | * Undo any changes to the options since options capture began. |
| 1561 | * |
| 1562 | * @since 3.9.0 |