title: base64_encode() limitation in php
body: <p>I am using the base64_encode for sending the numeric id to url, <code>base64_encode($list_post['id']);</code> up to 99 its working fine, but after 99 its produce wrong encoded string.</p>
  
  <p>the last character in encoded string is = (equal sign), but when the number more than 99, for example 100 it don't show = (equal sign) at the end.</p>