Online PHP editor | output for naOFg

@ 2023-10-24T19:30:47Z

<?php

define('WEIGHTS', [7, 3, 1]);
define('WEIGHTS_COUNT', count(WEIGHTS));

$customerNumber = 1;
$invoiceNumber = 25;

$refBase = sprintf('%d%04d', $customerNumber, $invoiceNumber);

$weightedSum = 0;
for ($x = 0, $i = strlen($refBase) - 1; $i >=0; --$i, ++$x) {
    $weightedSum += $refBase[$i] * WEIGHTS[$x % WEIGHTS_COUNT];
}

echo $refBase . (ceil($weightedSum / 10) * 10 - $weightedSum);

Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0: 100256
Output for 8.4.15: /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.

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