title: PHP case and accent insensitive search into an array
body: <p>I have an array containing words, some of them with accents. I want to test if a given word is into that array but making it case and accent insensitive. For example:</p>
  
  <pre><code>$array = array("coche","camión","moto","carro");
  </code></pre>
  
  <p>i want a simple little function, something like <code>in_array</code>. If my string is <code>'Camion'</code> or <code>'camión'</code> it should return <code>true</code>.</p>
  
  <p>Any ideas?</p>