note 73563 added to function.realpath

Tyron Madlener said "I just wonder why all the other solutions are so complex and that mine so simple". Funny. I wonder why yours is so complex (26 lines, 2 functions) when it can be done in half that (13 lines, 1 function): function rp($p) { $p=explode('/', $p); $o=array(); for ($i=0; $i<sizeof($p); $i++) { if (''==$p[$i] || '.'==$p[$i]) continue; if ('..'==$p[$i] && $i>0 && '..'!=$o[sizeof($o)-1]) { array_pop($o); continue; } array_push($o, $p[$i]); } return implode('/', $o); } With that, this: print rp("../../xyz.txt")."\n"; print rp("a/b/c/d/../../xyz.txt")."\n"; print rp("a/b/c/d/../..//xyz.txt")."\n"; Prints: ../../xyz.txt a/b/xyz.txt a/b/xyz.txt As expected. ---- Server IP: 69.147.83.197 Probable Submitter: 67.151.45.162 ---- Manual Page -- http://www.php.net/manual/en/function.realpath.php Edit -- https://master.php.net/note/edit/73563 Del: integrated -- https://master.php.net/note/delete/73563/integrated Del: useless -- https://master.php.net/note/delete/73563/useless Del: bad code -- https://master.php.net/note/delete/73563/bad+code Del: spam -- https://master.php.net/note/delete/73563/spam Del: non-english -- https://master.php.net/note/delete/73563/non-english Del: in docs -- https://master.php.net/note/delete/73563/in+docs Del: other reasons-- https://master.php.net/note/delete/73563 Reject -- https://master.php.net/note/reject/73563 Search -- https://master.php.net/manage/user-notes.php