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run code in 150+ php & hhvm versions
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<?php $s="sasas @prashnthm sdhjds @medonthi http://t.co/s3tZXim14e"; $url="http://t.co/s3tZXim14e"; $durl="pic.twitter.com/s3tZXim14e"; $data=str_replace($url,$durl,$s); var_dump($data); ?>
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
string(60) "sasas @prashnthm sdhjds @medonthi pic.twitter.com/s3tZXim14e"