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php随机生成字符串函数,可指定长度
/*随机生成字符串函数random
$length生成字符串的长度 */ function random($length) { $hash = ''; $chars = '0123456789'; $max = strlen($chars) - 1; mt_srand((double)microtime() * 1000000); for($i = 0; $i < $length; $i++) { $hash .= $chars[mt_rand(0, $max)]; } return $hash; } echo random(6); |
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