3v4l.org

run code in 300+ PHP versions simultaneously
<?php $isp = geoip_isp_by_name("www.google.com"); if(!isset($isp)) { echo "not set" } else { echo "ISP = ".$isp.""; }
Output for 5.3.0 - 5.3.27, 5.4.0 - 5.4.19
Parse error: syntax error, unexpected '}', expecting ',' or ';' in /in/2jfX5 on line 6
Process exited with code 255.
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192.95 ms | 1395 KiB | 55 Q