Obj::isFileReference() 

\nn\t3::Obj()->isFileReference($obj); 

Checks whether the object is a \TYPO3\CMS\Extbase\Domain\Model\FileReference.

\nn\t3::Obj()->isFileReference( $obj );
Copied!

| @return boolean

Source Code 

public function isFileReference ( $obj )
{
	if (!is_object($obj)) return false;
	if (is_a($obj, \TYPO3\CMS\Extbase\Domain\Model\FileReference::class)) return true;
	$tableName = \nn\t3::Obj()->getTableName($obj);
	return $tableName == 'sys_file_reference';
}
Copied!