how to generate random alphanumeric string in php

August 19, 2018 XpertPhp

In this article, we will know you how to generate random alphanumeric string in PHP. we will see a simple example of generate random string in PHP.

Sometimes we have to random alphanumeric string. such as generate a token. so we are using the md5() function in this example. so you can see the below example.

<?php 
function random_strings($length_of_string) { 
    return substr(md5(time()), 0, $length_of_string); 
} 
  
// Random string of length 8 
echo random_strings(8); 
  
echo "<br/>"; 
  
// Random string of length 6
echo random_strings(6); 
  
?>