3v4l.org

run code in 300+ PHP versions simultaneously
<?php $map = ' \\ / / / / / \\ \\ \\ / \\ /\\ \\/ \\ / \\ \\ \\ \\ \\ \\ / /'; echo r($map); function r($m){ //$x=1;$p=0; echo substr($m,0,strpos($m,"/\\"))."|"; // foreach(explode("\n",$m) as $l){ // // echo $x.")".$l."\n";$x++; // if($p=strpos($l,"/\\")){$p++;break;} // }echo $p; }
Output for 5.4.2 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.29 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
\ / / / / / \ \ \ / \ |

preferences:
168.61 ms | 404 KiB | 219 Q