3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $x = '0311'; $expiry_y = substr($card['card_expiry'], 2); $expiry_m = substr($card['card_expiry'], 0, 2); echo $expiry_y; echo "\n\n"; echo $expiry_m;
Output for 5.0.4 - 7.2.0
Notice: Undefined variable: card in /in/Cgnel on line 5 Notice: Undefined variable: card in /in/Cgnel on line 8
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: card in /in/Cgnel on line 5 Notice: Undefined variable: card in /in/Cgnel on line 8