Random password instance code generated using PHP

A password is a technique used to confuse, and it wants to turn normal (identifiable) information into unrecognized information. Of course, for a small group of people, this unrecognized information can be re-processed and restored. The password in Chinese is the generic term for "password" (password). The "password" entered in the website, e-mail, and bank withdrawals is strictly supposed to be called "password" only, because it is not a "cryptographic code" in its original sense, but it can also be called a secret number.

This article mainly introduces the pure PHP generated 12-bit random password, generate password safe and reliable, interested in small partners can refer to

PHP generates a random password, which is quick and easy, and can generate a secure and reliable password randomly.

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<?phpheader ("Content-type:text/html;charset=utf-8"), function getrandpass ($length = 6) {$password = ";// Add the characters you want to the following string, the default is the number 0-9 and 26 english letters $chars = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";  $char _len = strlen ($chars);  for ($i =0; $i < $length; $i + +) {$loop = Mt_rand (0, ($char _len-1));//Use this string as an array, randomly take out a character, and loop stitch it into the number of digits you need $password. = $ chars[$loop]; } return $password;} Echo Getrandpass (12); Randomly generate a 12-digit password?>