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run code in 150+ php & hhvm versions
Bugs & Features
<?php $_SESSION['cart'][$unique] = array(); print_r($_SESSION);
Output for 5.0.4 - 5.6.28, hhvm-3.13.2, 7.0.0 - 7.1.0
Notice: Undefined variable: unique in /in/l2TEI on line 2 Array ( [cart] => Array ( [] => Array ( ) ) )
Output for hhvm-3.10.0 - 3.12.0
Array ( [cart] => Array ( [] => Array ( ) ) )
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: unique in /in/l2TEI on line 2 Array ( [cart] => Array ( [] => Array ( ) ) )