Test numeric orders

<?php

// Test to see MarketPress order number generator generates numbers who is only digits.
// Save in a file and run in terminal.

$count = 10000;
$nums = 0;
for ($i = 0; $i < $count; $i++) {
    $order_id = substr( sha1( uniqid( '' ) ), rand( 1, 24 ), 12 );
    if (is_numeric($order_id)) {
        echo "\n".$order_id."\n";
        $nums ++;
    } else {
        echo ".";
    }
}
$pro = $nums * 100 / $count ;
echo "\n $nums Order-ids numeric out of $count  =>  $pro %\n";

/*

Output (Last lines):
735794351019
.....................................................
142417955337
..........................................................................
680235e21764
.........................................
 68 Order-ids numeric out of 10000 =>  0.68 %

*/
?>