--TEST-- Test wrong number of arguments for acos() --FILE-- <?php /* * proto float acos(float number) * Function is implemented in ext/standard/math.c */ $arg_0 = 1.0; $extra_arg = 1; echo "\nToo many arguments\n"; var_dump(acos($arg_0, $extra_arg)); echo "\nToo few arguments\n"; var_dump(acos()); ?> --EXPECTF-- Too many arguments Warning: acos() expects exactly 1 parameter, 2 given in %s on line %d NULL Too few arguments Warning: acos() expects exactly 1 parameter, 0 given in %s on line %d NULL