ZEND_ASSIGN_POW   785 Zend/zend_language_parser.y 	|	variable T_POW_EQUAL expr		{ zend_check_writable_variable(&$1); zend_do_end_variable_parse(&$1, BP_VAR_RW, 0 TSRMLS_CC); zend_do_binary_assign_op(ZEND_ASSIGN_POW, &$$, &$1, &$3 TSRMLS_CC); }
ZEND_ASSIGN_POW  5708 Zend/zend_vm_def.h ZEND_VM_HANDLER(167, ZEND_ASSIGN_POW, VAR|UNUSED|CV, CONST|TMP|VAR|UNUSED|CV)
ZEND_ASSIGN_POW   112 ext/opcache/Optimizer/pass3.c 								opline->opcode = ZEND_ASSIGN_POW;