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run code in 150+ php & hhvm versions
Bugs & Features
<?php $r = array(); if (($num = count($r)) > 1) { $rr = array_rand($r, $num); } var_dump($r, $rr);
Output for 5.0.4 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Notice: Undefined variable: rr in /in/1ADUG on line 7 array(0) { } NULL
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: rr in /in/1ADUG on line 7 array(0) { } NULL