title: How to check if an array value exists?
body: <p>How can I check if <code>$something['say']</code> has the value of <code>'bla'</code> or <code>'omg'</code>?</p>
  
  <pre><code>$something = array('say' =&gt; 'bla', 'say' =&gt; 'omg');
  </code></pre>