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run code in 150+ php & hhvm versions
Bugs & Features
<?php $array = array(5612 => 'my note'); $keys = array_keys($array); print_r($keys[$value]); ?>
Output for 5.3.0 - 5.6.28, 7.0.0 - 7.1.0
Notice: Undefined variable: value in /in/bnLal on line 5 Notice: Undefined index: in /in/bnLal on line 5
Output for hhvm-3.10.0 - 3.12.0
Notice: Undefined index: in /in/bnLal on line 5
Output for 5.0.4 - 5.2.17
Notice: Undefined variable: value in /in/bnLal on line 5 Notice: Undefined index: in /in/bnLal on line 5
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: value in /in/bnLal on line 5 Notice: Undefined index: in /in/bnLal on line 5