note 55014 added to function.realpath

I have written this function so that it does not matter whether the folder exists on the system. It simply traverses the given path moving up directories at every "/.." that it encounters. Though this can be used with a file at the end I would be cautious about using it with a query attached as any "/.." in the query will remove the text proir until the previous "/". <?php function htmlpath($relative_path) { $realpath = ''; $q = 0; // Remove any ./ $relative_path = str_replace('/./', '/', $relative_path); // Remove trailing / if ($relative_path[strlen($relative_path)-1] == '/') { $relative_path = substr($relative_path, 0, -1); } $p = strpos($relative_path, '/..', $q); while ($p !== false) { // Get the next part of the path if ($p != $q) $realpath .= substr($relative_path, $q, $p); // Find the edge of the previous directory $i = strrpos($realpath, '/'); if ($i === false) { return false; // Not enough directories to go up any further. } // Remove the directory $realpath = substr($realpath, 0, $i); // Take out the "/.." $relative_path = substr($relative_path, 0, $p) . substr($relative_path, $p+3); // Find the next "/.." $q = $p; $p = strpos($relative_path, '/..', $q); } // Get the rest of the relative path. $realpath .= substr($relative_path, $q); return $realpath; } ?> ---- Manual Page -- http://www.php.net/manual/en/function.realpath.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+55014 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+55014&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+55014&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+55014&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+55014&report=yes&reason=useless Delete: non-english -- http://master.php.net/manage/user-notes.php?action=delete+55014&report=yes&reason=non-english Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+55014&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+55014&report=yes Search -- http://master.php.net/manage/user-notes.php