ZEND_BOOL_XOR 3983 Zend/zend_language_parser.c { zend_do_binary_op(ZEND_BOOL_XOR, &(yyval), &(yyvsp[(1) - (3)]), &(yyvsp[(3) - (3)]) TSRMLS_CC); } ZEND_BOOL_XOR 578 Zend/zend_language_parser.y | expr T_LOGICAL_XOR expr { zend_do_binary_op(ZEND_BOOL_XOR, &$$, &$1, &$3 TSRMLS_CC); } ZEND_BOOL_XOR 249 Zend/zend_vm_def.h ZEND_VM_HANDLER(14, ZEND_BOOL_XOR, CONST|TMP|VAR|CV, CONST|TMP|VAR|CV)