Knowledge Base

Here is the code

<?php

function generateSerial($nr, $lenght)
{
$code=”;
for ($i=1;$i<=$nr;$i++)
{
$code = $code.substr(strtoupper(md5(uniqid(rand(), true))), 0, $lenght).’-';
}

return substr($code, 0, strlen($code)-1);

}

echo generateSerial(4,5);

?>