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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 |
---|---|
1589 | * @return mixed Filtered option value. |
1590 | */ |
1591 | public function capture_filter_pre_get_option( $value ) { |
1592 | $option_name = preg_replace( '/^pre_option_/', '', current_filter() ); |
1593 |
|
1594 | if ( isset( $this->_captured_options[ $option_name ] ) ) { |
1595 | $value = $this->_captured_options[ $option_name ]; |
1596 |
|
1597 | /** This filter is documented in wp-includes/option.php */ |
1598 | $value = apply_filters( 'option_' . $option_name, $value ); |
1599 | } |
1600 |
|
1601 | return $value; |
1602 | } |
1603 |
|
1604 | /** |
1605 | * Undo any changes to the options since options capture began. |
1606 | * |
1607 | * @since 3.9.0 |