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run code in 150+ php & hhvm versions
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<?php $alpha = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789'; $length = 11; $ran = rand(0, strlen($alpha)); $key = rand($alpha, $ran); echo $key; ?>
Output for hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Warning: rand() expects parameter 1 to be integer, string given in /in/jnnZ1 on line 5
Output for 4.3.0 - 5.6.28
Warning: rand() expects parameter 1 to be long, string given in /in/jnnZ1 on line 5