title: PHP multidimensional array type hinting for function parameter
body: <p>In PHP, is it possible to type hint a multidimensional array as a function parameter?</p>
  
  <p>Of course you can type hint a single array as such:</p>
  
  <pre><code>function Example(array $parameter) {}
  </code></pre>
  
  <p>But if a function needs the parameter to be a multidimensional array is there any way to enforce this through type hinting?</p>