3v4l.org

run code in 300+ PHP versions simultaneously
<?php function calculateRoutes($points){ //our output array $out = array(); //reset the index of our points to ensure they are 0 to N-1 $points = array_values($points); //loop over the points once for($i=0; $i<count($points) - 1; $i++){ //loop over the points again, offset by 1 for($j=$i+1; $j<count($points); $j++){ //add to our output array the two points $out[] = array($points[$i], $points[$j]); } } //return the final result return $out; } $points = array('A', 'B', 'C', 'D'); $routes = calculateRoutes($points); print_r($routes);
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [0] => Array ( [0] => A [1] => B ) [1] => Array ( [0] => A [1] => C ) [2] => Array ( [0] => A [1] => D ) [3] => Array ( [0] => B [1] => C ) [4] => Array ( [0] => B [1] => D ) [5] => Array ( [0] => C [1] => D ) )

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:
125.3 ms | 406 KiB | 5 Q