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run code in 200+ php & hhvm versions
Bugs & Features
<?php echo $_SERVER['SERVER_ADDR']; ?>
Output for 5.3.0 - 7.2.0
Notice: Undefined index: SERVER_ADDR in /in/CMEv8 on line 2
Output for 4.3.0 - 5.2.17
Notice: Undefined index: SERVER_ADDR in /in/CMEv8 on line 2