PHP Manual Language Reference Predefined Interfaces and Classes ArrayAccess ArrayAccess::offsetUnset ArrayAccess::offsetSet Serializable ArrayAccess::offsetUnset (PHP 5 >= 5.0.0)ArrayAccess::offsetUnset — Unset an offset Description abstract public void ArrayAccess::offsetUnset ( mixed $offset ) Unsets an offset. Note: This method will not be called when type-casting to (unset) Parameters offset The offset to unset. Return Values No value is returned.