Don’t alloc if there are 0 params

Author: trowski

ext/standard/basic_functions.c

@@ -1794,11 +1794,16 @@ PHP_FUNCTION(register_shutdown_function)
 		Z_PARAM_VARIADIC('+', params, entry.fci.param_count);
 	ZEND_PARSE_PARAMETERS_END();
 
-	entry.fci.params = emalloc(sizeof(zval) * entry.fci.param_count);
-
 	Z_TRY_ADDREF(entry.fci.function_name);
-	for (size_t i = 0; i < entry.fci.param_count; i++) {
-		ZVAL_COPY(&entry.fci.params[i], &params[i]);
+
+	if (entry.fci.param_count) {
+		entry.fci.params = emalloc(sizeof(zval) * entry.fci.param_count);
+
+		for (size_t i = 0; i < entry.fci.param_count; i++) {
+			ZVAL_COPY(&entry.fci.params[i], &params[i]);
+		}
+	} else {
+		entry.fci.params = NULL;
 	}
 
 	ZEND_ASSERT(append_user_shutdown_function(&entry));