PHP生成随机字符串
function str_rand($length = 32) { $char = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'; if(!is_int($length) || $length < 0) { return false; } $string = ''; for($i = $length; $i > 0; $i--) { $string .= $char[mt_rand(0, strlen($char) - 1)]; } return $string; }
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