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A function that generates a random password. The generated password is a random string of lowercase letters and numbers, with a customizable length.
/* * php自动生成新密码自定义函数(带实例演示) 适用环境: PHP5.2.x / mysql 5.0.x 代码作者: xujiajay www.jbxue.com 联系方式: xujiaphp@gmail.com * */ function genPassword($min = 5, $max = 8) { $validchars="abcdefghijklmnopqrstuvwxyz123456789"; $max_char=strlen($validchars)-1; $length=mt_rand($min,$max); $password = ""; for($i=0;$i<$length;$i ) { $password.=$validchars[mt_rand(0,$max_char)]; } return $password; } echo "新密码:".genPassword()."<br-->"; echo "新密码:".genPassword(5,10)." "; ?>