ZEND_ASSIGN_SUB 4604 Zend/zend_language_parser.c { zend_check_writable_variable(&(yyvsp[(1) - (3)])); zend_do_end_variable_parse(&(yyvsp[(1) - (3)]), BP_VAR_RW, 0 TSRMLS_CC); zend_do_binary_assign_op(ZEND_ASSIGN_SUB, &(yyval), &(yyvsp[(1) - (3)]), &(yyvsp[(3) - (3)]) TSRMLS_CC); } ZEND_ASSIGN_SUB 745 Zend/zend_language_parser.y | variable T_MINUS_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_SUB, &$$, &$1, &$3 TSRMLS_CC); } ZEND_ASSIGN_SUB 764 Zend/zend_opcode.c case ZEND_ASSIGN_SUB: ZEND_ASSIGN_SUB 537 Zend/zend_vm_def.h ZEND_VM_HANDLER(24, ZEND_ASSIGN_SUB, VAR|UNUSED|CV, CONST|TMP|VAR|UNUSED|CV) ZEND_ASSIGN_SUB 1933 ext/opcache/Optimizer/block_pass.c case ZEND_ASSIGN_SUB: ZEND_ASSIGN_SUB 25 ext/opcache/Optimizer/pass2.c case ZEND_ASSIGN_SUB: ZEND_ASSIGN_SUB 96 ext/opcache/Optimizer/pass3.c opline->opcode = ZEND_ASSIGN_SUB; ZEND_ASSIGN_SUB 208 ext/opcache/Optimizer/zend_optimizer.c case ZEND_ASSIGN_SUB: ZEND_ASSIGN_SUB 228 ext/opcache/Optimizer/zend_optimizer.c (opline-1)->opcode == ZEND_ASSIGN_SUB ||