- substr: documentation ( source)
- strpos: documentation ( source)
- strrpos: documentation ( source)
<?php
$map = ' \\
/ /
/ /
/ \\
\\ \\
/ \\
/\\
\\/
\\ /
\\ \\
\\ \\
\\ \\
/ /';
echo r($map);
function r($m){
//$x=1;$p=0;
echo strrpos(substr($m,0,strpos($m,"/\\")),"\n");
// foreach(explode("\n",$m) as $l){
// // echo $x.")".$l."\n";$x++;
// if($p=strpos($l,"/\\")){$p++;break;}
// }echo $p;
}