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<?php function createNoncestr( $length = 32 ) { $chars ="abcdefghijklmnopqrstuvwxyz0123456789"; $str =""; for($i=0;$i<$length;$i++) { $str.= substr($chars, mt_rand(0, strlen($chars)-1), 1); } return $str; }
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原文地址:http://www.cnblogs.com/lizhaoyao/p/4816372.html