PHP生成随机字符串
function RandomToken($length = 32){ ???if(!isset($length) || intval($length) <= 8 ){ ???????$length = 32; ???} ???if (function_exists(‘openssl_random_pseudo_bytes‘)) { ???????return bin2hex(openssl_random_pseudo_bytes($length)); ???} ???if (function_exists(‘random_bytes‘)) { ???????return bin2hex(random_bytes($length)); ???} ???if (function_exists(‘mcrypt_create_iv‘)) { ???????return bin2hex(mcrypt_create_iv($length, MCRYPT_DEV_URANDOM)); ???} ???$rand = ‘‘; ???for($i = 0, $num = ceil($length/32) * 2;$i<=$num;$i++){ ???????$rand .= md5(uniqid()); ???} ???return substr($rand,0,$length*2);}PHP生成随机字符串
原文地址：https://www.cnblogs.com/lovellll/p/10200543.html