ZEND_UNSET_OBJ   6133 Zend/zend_compile.c 				last_op->opcode = ZEND_UNSET_OBJ;
ZEND_UNSET_OBJ   4045 Zend/zend_vm_def.h ZEND_VM_HANDLER(76, ZEND_UNSET_OBJ, VAR|UNUSED|CV, CONST|TMP|VAR|CV)
ZEND_UNSET_OBJ    198 ext/opcache/Optimizer/zend_optimizer.c 			case ZEND_UNSET_OBJ: