How to Generate Random String in PHP

In PHP, you can generate a random string using various methods. The example below is function that generates a random number according to the specified length set on the parameter while calling the function.

<?php
  
    function generateRandomString($length = 10) {
        $characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
        $charactersLength = strlen($characters);
        $randomString = '';
        for ($i = 0; $i < $length; $i++) {
            $randomString .= $characters[rand(0, $charactersLength - 1)];
        }
        return $randomString;
    }
  
    $randomString = generateRandomString(10);
    echo $randomString;
  
?>