Use memcmp here is better

Author: laruence

Zend/zend_vm_def.h

@@ -3583,7 +3583,7 @@ ZEND_VM_HANDLER(99, ZEND_FETCH_CONSTANT, VAR|CONST|UNUSED, CONST)
 			}
 			ZVAL_COPY_VALUE(&EX_T(opline->result.var).tmp_var, *value);
 			zval_copy_ctor(&EX_T(opline->result.var).tmp_var);
-		} else if (Z_STRLEN_P(opline->op2.zv) == sizeof("class")-1 && strcmp(Z_STRVAL_P(opline->op2.zv), "class") == 0) {
+		} else if (Z_STRLEN_P(opline->op2.zv) == sizeof("class")-1 && memcmp(Z_STRVAL_P(opline->op2.zv), "class", sizeof("class") - 1) == 0) {
 			/* "class" is assigned as a case-sensitive keyword from zend_do_resolve_class_name */
 			ZVAL_STRINGL(&EX_T(opline->result.var).tmp_var, ce->name, ce->name_length, 1);
 		} else {

Zend/zend_vm_execute.h

@@ -3817,7 +3817,7 @@ static int ZEND_FASTCALL  ZEND_FETCH_CONSTANT_SPEC_CONST_CONST_HANDLER(ZEND_OPCO
 			}
 			ZVAL_COPY_VALUE(&EX_T(opline->result.var).tmp_var, *value);
 			zval_copy_ctor(&EX_T(opline->result.var).tmp_var);
-		} else if (Z_STRLEN_P(opline->op2.zv) == sizeof("class")-1 && strcmp(Z_STRVAL_P(opline->op2.zv), "class") == 0) {
+		} else if (Z_STRLEN_P(opline->op2.zv) == sizeof("class")-1 && memcmp(Z_STRVAL_P(opline->op2.zv), "class", sizeof("class") - 1) == 0) {
 			/* "class" is assigned as a case-sensitive keyword from zend_do_resolve_class_name */
 			ZVAL_STRINGL(&EX_T(opline->result.var).tmp_var, ce->name, ce->name_length, 1);
 		} else {
@@ -15625,7 +15625,7 @@ static int ZEND_FASTCALL  ZEND_FETCH_CONSTANT_SPEC_VAR_CONST_HANDLER(ZEND_OPCODE
 			}
 			ZVAL_COPY_VALUE(&EX_T(opline->result.var).tmp_var, *value);
 			zval_copy_ctor(&EX_T(opline->result.var).tmp_var);
-		} else if (Z_STRLEN_P(opline->op2.zv) == sizeof("class")-1 && strcmp(Z_STRVAL_P(opline->op2.zv), "class") == 0) {
+		} else if (Z_STRLEN_P(opline->op2.zv) == sizeof("class")-1 && memcmp(Z_STRVAL_P(opline->op2.zv), "class", sizeof("class") - 1) == 0) {
 			/* "class" is assigned as a case-sensitive keyword from zend_do_resolve_class_name */
 			ZVAL_STRINGL(&EX_T(opline->result.var).tmp_var, ce->name, ce->name_length, 1);
 		} else {
@@ -25141,7 +25141,7 @@ static int ZEND_FASTCALL  ZEND_FETCH_CONSTANT_SPEC_UNUSED_CONST_HANDLER(ZEND_OPC
 			}
 			ZVAL_COPY_VALUE(&EX_T(opline->result.var).tmp_var, *value);
 			zval_copy_ctor(&EX_T(opline->result.var).tmp_var);
-		} else if (Z_STRLEN_P(opline->op2.zv) == sizeof("class")-1 && strcmp(Z_STRVAL_P(opline->op2.zv), "class") == 0) {
+		} else if (Z_STRLEN_P(opline->op2.zv) == sizeof("class")-1 && memcmp(Z_STRVAL_P(opline->op2.zv), "class", sizeof("class") - 1) == 0) {
 			/* "class" is assigned as a case-sensitive keyword from zend_do_resolve_class_name */
 			ZVAL_STRINGL(&EX_T(opline->result.var).tmp_var, ce->name, ce->name_length, 1);
 		} else {