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function is not described

WC_Customer_Download::__isset() public WC 1.0

Magic __isset method for backwards compatibility. Legacy properties which could be accessed directly in the past.

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

No Hooks.

Return

true|false.

Usage

$WC_Customer_Download = new WC_Customer_Download();
$WC_Customer_Download->__isset( $key );
$key(string) (required)
Key name.

Code of WC_Customer_Download::__isset() WC 5.6.0

public function __isset( $key ) {
	return in_array( $key, array_keys( $this->data ), true );
}