PHP generates a secure and random password program_PHP tutorial

php generates a random password, which is convenient and fast. It can randomly generate safe and reliable passwords. I hope this article will be helpful to everyone.

Example

$chars = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";

The code is as follows

代码如下

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header("Content-type:text/html;charset=utf-8"); function getRandPass($length = 6){  $password = '';  //将你想要的字符添加到下面字符串中，默认是数字0-9和26个英文字母  $chars = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";  $char_len = strlen($chars);  for($i=0;$i   $loop = mt_rand(0, ($char_len-1));   //将这个字符串当作一个数组，随机取出一个字符，并循环拼接成你需要的位数   $password .= $chars[$loop];  }  return $password; } echo getRandPass(12); //随机生成一个12位数的密码   ?>

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header("Content-type:text/html;charset=utf-8");

function getRandPass($length = 6){

$password = '';

//Add the characters you want to the string below, the default is numbers 0-9 and 26 English letters

代码如下

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function generate_password( $length = 8 ) {     // 密码字符集，可任意添加你需要的字符     $chars = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789!@#$%^&*()-_ []{}~`+=,.;:/?|';     $password = '';     for ( $i = 0; $i     {         // 这里提供两种字符获取方式         // 第一种是使用 substr 截取$chars中的任意一位字符；         // 第二种是取字符数组 $chars 的任意元素         // $password .= substr($chars, mt_rand(0, strlen($chars) - 1), 1);         $password .= $chars[ mt_rand(0, strlen($chars) - 1) ];     }     return $password; }

$char_len = strlen($chars);

for($i=0;$i $loop = mt_rand(0, ($char_len-1)); //Treat this string as an array, randomly pick out a character, and loop to splice it into the number of digits you need $password .= $chars[$loop]; } return $password; } echo getRandPass(12); //Randomly generate a 12-digit password

?> Where to generate password Example 2, a bit similar to the first one 1. Preset a string $chars, including a – z, A – Z, 0 – 9, and some special characters 2. Randomly pick a character from the $chars string 3. Repeat the second step n times to get a password of length n

The code is as follows

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function generate_password( $length = 8 ) { // Password character set, you can add any characters you need $chars = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789!@#$%^&*()-_ []{}~`+=,.;:/?|'; $password = ''; for ( $i = 0; $i { //There are two ways to obtain characters // The first is to use substr to intercept any character in $chars;                                                                                                                                                                                                                              is to take any element of the character array $chars // $password .= substr($chars, mt_rand(0, strlen($chars) - 1), 1);             $password .= $chars[ mt_rand(0, strlen($chars) - 1) ]; } return $password; } http://www.bkjia.com/PHPjc/632821.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/632821.htmlTechArticlephp generates a random password, which is convenient and fast. It can randomly generate safe and reliable passwords. I hope this article will be useful to everyone. Helps. Example code is as follows Copy code ?php header(Content-...