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run code in 200+ php & hhvm versions
Bugs & Features
<?php if(preg_match('/Gecko/', $_SERVER['HTTP_USER_AGENT'])) { echo "Damn beast, gecko!"; } else { echo "Damn you!"; } echo $_SERVER['HTTP_USER_AGENT'];
Output for 5.3.0 - 7.1.7
Notice: Undefined index: HTTP_USER_AGENT in /in/Jfta3 on line 2 Damn you! Notice: Undefined index: HTTP_USER_AGENT in /in/Jfta3 on line 8
Output for 4.3.0 - 5.2.17
Notice: Undefined index: HTTP_USER_AGENT in /in/Jfta3 on line 2 Damn you! Notice: Undefined index: HTTP_USER_AGENT in /in/Jfta3 on line 8