Removes duplicates values from an multidimensional array (PHP)

The idea: Serialize the item of the item (array) of the multidimensional array Than Sort out the same item. // serialize — Generates a storable representation of a value $workArr =array(); foreach ($newDateArr as $value) { $workArr[]= serialize ( $value ); } $workArr = array_unique($workArr); //unserialize — Creates a PHP value from a stored representation $workArr2 =array(); foreach ($workArr as $value) { $workArr2[]= unserialize( $value ); } other source - but this was not worked for me: How to remove duplicate values from a multi-dimensional array in PHP http://stackoverflow.com/questions/307674/how-to-remove-duplicate-values-from-a-multi-dimensional-array-in-php