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function is not described

WC_Session::__isset() public WC 1.0

Magic isset method.

{} It's a method of the class: WC_Session{}

No Hooks.

Return

true|false.

Usage

$WC_Session = new WC_Session();
$WC_Session->__isset( $key );
$key(mixed) (required)
Key to check.

Code of WC_Session::__isset() WC 5.8.0

public function __isset( $key ) {
	return isset( $this->_data[ sanitize_title( $key ) ] );
}