--TEST-- Test round() function : error conditions - incorrect number of args --FILE-- <?php /* Prototype : float round ( float $val [, int $precision ] ) * Description: Returns the rounded value of val to specified precision (number of digits * after the decimal point) * Source code: ext/standard/math.c */ /* * Pass incorrect number of arguments to round() to test behaviour */ echo "*** Testing round() : error conditions ***\n"; echo "\n-- Wrong nmumber of arguments --\n"; var_dump(round()); var_dump(round(500, 10, true)); ?> ===Done=== --EXPECTF-- *** Testing round() : error conditions *** -- Wrong nmumber of arguments -- Warning: round() expects at least 1 parameter, 0 given in %s on line %d NULL float(500) ===Done===