public function unsetProperty($property) {
		foreach ($this->_data as &$item) {
			unset($item[$property]);
		}
		unset($item);
		
		return $this;
	}
public function unsetProperty($property) {
		foreach ($this->_data as &$item) {
			unset($item[$property]);
		}
		unset($item);
		
		return $this;
	}
public function unsetProperty ( $ property ) { foreach ( $ this -> _data as & $ item ) { unset ( $ item [ $ property ] ) ; } unset ( $ item ) ; return $ this ; }
Unset a property in each item

@param  string $property
@return Collection
Unset a property in each item