#php

<?xml version="1.0" standalone="no"?>
 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.0//EN" 
 "http://www.w3.org/TR/SVG/DTD/svg10.dtd">
 <svg xmlns="http://www.w3.org/2000/svg">
   <title>A Circle</title>
   <circle cx="100" cy="100" r="50" stroke="black" stroke-width="2px" fill="none">
     <animate attributeType="XML" attributeName="r" from="0" to="50" dur="2s"/>
   </circle>
</svg>