3v4l.org

run code in 300+ PHP versions simultaneously
<?php function rand_str($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; }

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32.77 ms | 402 KiB | 5 Q