title: PHP Convert Array Keys
body: <p>Had a hard time wording this in google so I figure ill ask here.</p>
  
  <p>I have an array like such:</p>
  
  <pre><code>Array ( [a] =&gt; 'a' [b] =&gt; 'b' [c] =&gt; 'c' )
  </code></pre>
  
  <p>Is there an easy way to convert the keys to numerical values like such? Is there a built in function, or will I have to make one?</p>
  
  <pre><code>Array ( [0] =&gt; 'a' [1] =&gt; 'b' [2] =&gt; 'c' )
  </code></pre>
  
  <p>Thanks!</p>