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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 |
---|---|
1525 | * @return mixed |
1526 | */ |
1527 | public function capture_filter_pre_get_option( $value ) { |
1528 | $option_name = preg_replace( '/^pre_option_/', '', current_filter() ); |
1529 |
|
1530 | if ( isset( $this->_captured_options[$option_name] ) ) { |
1531 | $value = $this->_captured_options[$option_name]; |
1532 |
|
1533 | /** This filter is documented in wp-includes/option.php */ |
1534 | $value = apply_filters( 'option_' . $option_name, $value ); |
1535 | } |
1536 |
|
1537 | return $value; |
1538 | } |
1539 |
|
1540 | /** |
1541 | * Undo any changes to the options since options capture began. |
1542 | * |
1543 | * @since 3.9.0 |