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                產生隨機字串,可用來自動生成密碼。 特點: 1. 可以指定密碼包含數字或字符,默認為混和模式 2. 指定隨意密碼長度,默認長度為6位 代碼如下: ~~~ #------------------------------------------- # 產生隨機字串,可用來自動生成密碼 # 默認長度6位 字母和數字混合 # $format ALL NUMBER CHAR 字串組成格式 #------------------------------------------- function randStr($len=6,$format='ALL') { switch($format) { case 'ALL': $chars='ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-@#~'; break; case 'CHAR': $chars='ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-@#~'; break; case 'NUMBER': $chars='0123456789'; break; default : $chars='ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-@#~'; break; } mt_srand((double)microtime()*1000000*getmypid()); $password=""; while(strlen($password)<$len) $password.=substr($chars,(mt_rand()%strlen($chars)),1); return $password; } ~~~
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