title: sort numeric string array in php
body: <p>I have a php array like : </p>
  
  <pre><code>myarr[1] = "1",
  myarr[2] = "1.233",
  myarr[3] = "0",
  myarr[4] = "2.5"
  </code></pre>
  
  <p>the values are actually strings but i want this array to be sorted numerically, also considering float values and maintaining index association.</p>
  
  <p>Please help me out.
  Thanks</p>