Merge branch 'PHP-7.4'

* PHP-7.4:
  Fixed bug #80083

Author: nikic

ext/opcache/Optimizer/zend_optimizer.c

@@ -886,6 +886,8 @@ uint32_t zend_optimizer_classify_function(zend_string *name, uint32_t num_args)
 		return ZEND_FUNC_INDIRECT_VAR_ACCESS;
 	} else if (zend_string_equals_literal(name, "get_defined_vars")) {
 		return ZEND_FUNC_INDIRECT_VAR_ACCESS;
+	} else if (zend_string_equals_literal(name, "db2_execute")) {
+		return ZEND_FUNC_INDIRECT_VAR_ACCESS;
 	} else if (zend_string_equals_literal(name, "func_num_args")) {
 		return ZEND_FUNC_VARARG;
 	} else if (zend_string_equals_literal(name, "func_get_arg")) {