PHP random string generator?

Question

I'm trying to create a randomized string in PHP, and I get absolutely no output with this: <?php function RandomString() { $characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'; $randstring = ''; for ($i = 0; $i < 10; $i++) { $randstring = $characters[rand(0, strlen($characters))]; } return $randstring; } RandomString(); echo $randstring; What am I doing wrong?

Answer 1

the function was okay, just how you call the function.

as your function has a return value, you need to receive that return value and print that out.

your variable name $randstring was inside the function and when you need it in the main programme, use another one.

<?php

  

function RandomString()

{

 $charset = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';

 $randstring = '';

 for ($i = 0; $i < 10; $i++)

 {

   $randstring .= $charset[rand(0, strlen($charset))];

 }

 return $randstring;

}

$str = RandomString();

echo $str;