3v4l.org

run code in 300+ PHP versions simultaneously
<?php function getCombinedSum($digits, $sum) { if(!is_int($digits) || !is_int($sum) || $digits<1 || $sum<0) { throw new InvalidArgumentException('Invalid numeric format'); } if($sum>9*$digits) { throw new LogicException('Sum out of range'); } if($digits==1) { return $sum; } $result = []; for($digit=0; $digit<10; $digit++) { if($sum-$digit>0) { $result[] = $digit.getCombinedSum($digits-1, $sum-$digit); } else { break; } } return $result; } var_dump(getCombinedSum(3, 4));
Output for git.master, git.master_jit, rfc.property-hooks
Warning: Array to string conversion in /in/P7KgU on line 22 Warning: Array to string conversion in /in/P7KgU on line 22 Warning: Array to string conversion in /in/P7KgU on line 22 Warning: Array to string conversion in /in/P7KgU on line 22 array(4) { [0]=> string(6) "0Array" [1]=> string(6) "1Array" [2]=> string(6) "2Array" [3]=> string(6) "3Array" }

This tab shows result from various feature-branches currently under review by the php developers. Contact me to have additional branches featured.

Active branches

Archived branches

Once feature-branches are merged or declined, they are no longer available. Their functionality (when merged) can be viewed from the main output page

preferences:
42.82 ms | 402 KiB | 8 Q