note 55014 deleted from function.realpath by danbrown

Note Submitter: phpnote at web-milk dot co dot uk ---- 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; } ?>