为大家提供用php生成强密码的两种方法。
方法一使用时间戳与随机数的方法,生成强密码。
方法二,原理大致相同,但生成的密码复杂度更强。
<?php /** php生成强密码 linK:www.jbxue.com 2013/3/2 */ $password_length = 9; function make_seed() { list($usec, $sec) = explode(’ ‘, microtime()); return (float) $sec + ((float) $usec * 100000); } srand(make_seed()); $alfa = “1234567890qwertyuiopasdfghjklzxcvbnmQWERTYUIOPASDFGHJKLZXCVBNM”; $token = “”; for($i = 0; $i < $password_length; $i ++) { $token .= $alfa[rand(0, strlen($alfa))]; } echo $token; //方法2 // Create Password $totalChar = 8; // number of chars in the password $salt = “abcdefghijklmnpqrstuvwxyzABCDEFGHIJKLMNPQRSTUVWXYZ123456789″; // salt to select chars from srand((double)microtime()*1000000); // start the random generator $Spass=””; // set the inital variable for ($i=0;$i<$totalChar;$i++) // loop and create password $Spass = $Spass . substr ($salt, rand() % strlen($salt), 1);