PHP function to generate a random string of custom length_PHP tutorial

This article mainly introduces the function sharing of PHP to generate random strings of custom length. Friends who need it can refer to it

php randomly generates strings and you can define the length you need. This is often encountered in actual application development.

The code is as follows:

// Randomly generate string

Function random($length) {

srand(date("s"));

$possible_charactors = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";

　$string = "";

while(strlen($string)<$length) {

　$string .= substr($possible_charactors,(rand()%(strlen($possible_charactors))),1);

　}

return($string);

　}

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