3v4l.org

run code in 300+ PHP versions simultaneously
<?php $length = 8; $chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz1234567890'; { $chars_length = (strlen($chars) - 1); $string = $chars{rand(0, $chars_length)}; for ($i = 1; $i < $length; $i = strlen($string)) { $r = $chars{rand(0, $chars_length)}; if ($r != $string{$i - 1}) { $string .= $r; } } return $string; }
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.7
preferences:
168.54 ms | 404 KiB | 217 Q