Random PHP

gistfile1.txt

<?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;
}

echo strtoupper(generateRandomString(7)).'<br/>';

$total = 7;

for($i = 1; $i <= $total; $i ++) {
    echo strtoupper(generateRandomString(7)).'<br/>';
}