PHP: Simple way to strip slashes and assemble a path-like structure avoiding missing/duplicate slashes.

mkuri.php

<?php

function mkUri($base, $path) {
  $base = preg_replace("/\/$/", "", $base);
  $path = preg_replace("/^\//", "", $path);
  return "$base/$path";
} 

echo mkUri("http://localhost/", "/foo") . "\n";
echo mkUri("http://localhost/", "foo") . "\n";
echo mkUri("http://localhost", "/foo") . "\n";
echo mkUri("http://localhost", "foo") . "\n";