How to resolve url's to final destination in php

How do i resol开发者_运维问答ve the urls like the one below:

http://www.google.co.in/url?sa=t&source=newssearch&cd=1&ved=0CC4QqQIwAA&url=http%3A%2F%2Fwww.usatoday.com%2Fnews%2Fworld%2Fstory%2F2011-09-18%2Findia-earthquake-fatalities%2F50456078%2F1&ei=JkF2TriYPImGrAeHxdCFDQ&usg=AFQjCNEshh4QAZQlM_tVPoT_l7rJ0ag21Q

to it's final url

http://www.usatoday.com/news/world/story/2011-09-18/india-earthquake-fatalities/50456078/1

I've tried curl but it's resolving it to http://www.google.co.in/http

http://sandbox.phpcode.eu/g/fc7c1/1

$ch = curl_init('http://www.google.co.in/url?sa=t&source=newssearch&cd=1&ved=0CC4QqQIwAA&url=http%3A%2F%2Fwww.usatoday.com%2Fnews%2Fworld%2Fstory%2F2011-09-18%2Findia-earthquake-fatalities%2F50456078%2F1&ei=JkF2TriYPImGrAeHxdCFDQ&usg=AFQjCNEshh4QAZQlM_tVPoT_l7rJ0ag21Q');
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HEADER, true);
curl_setopt($ch, CURLOPT_NOBODY, true);
$response = curl_exec($ch);

$info = curl_getinfo($ch);
echo $info['url'];

All you are after is the value of the url parameter. You can preg_split the initial url by /&\?/, then take the element starting with url=, finally split it by = sign and use urldecode on the final value.