title: How to convert this string representation of an array into an actual php array
body: <p>Here is an example:</p>
  
  <pre><code>$array = "[[51.228697283276,0.45897198252166],[51.228697283276,0.59374016480853],[51.312903819352,0.59374016480853],[51.312903819352,0.45897198252166]]";
  </code></pre>