Cloaking.House redirect.php for multiple offers.

redirect.php

<?php
// =========================================================================
// CONFIGURE ONLY THIS SECTION
// =========================================================================

// Add as many offers as you need by copying a block
// Weight is not a percentage - just a number for comparison
// Example: 70 and 30 gives the same ratio as 7 and 3
// To temporarily disable an offer - set 'weight' => 0

$offers = [
    [
        'url'    => 'https://YOUR-LINK-A.com/', // Offer A
        'weight' => 50 // % share of traffic
    ],
    [
        'url'    => 'https://YOUR-LINK-B.com/', // Offer B
        'weight' => 50 // % share of traffic
    ],
    // Uncomment to add a third offer:
    // [
    //     'url'    => 'https://YOUR-LINK-C.com/',
    //     'weight' => 50 // % share of traffic
    // ],
];

// =========================================================================
// DO NOT CHANGE ANYTHING BELOW
// =========================================================================

$totalWeight = 0;
foreach ($offers as $offer) {
    $totalWeight += $offer['weight'];
}

if ($totalWeight <= 0) {
    die("Error: weights not configured.");
}

$rand = mt_rand(1, $totalWeight);
$sum  = 0;
$destinationUrl = '';

foreach ($offers as $offer) {
    $sum += $offer['weight'];
    if ($rand <= $sum) {
        $destinationUrl = $offer['url'];
        break;
    }
}

if (empty($destinationUrl)) {
    foreach ($offers as $offer) {
        if (!empty($offer['url'])) {
            $destinationUrl = $offer['url'];
            break;
        }
    }
}

if (empty($destinationUrl)) {
    die("Error: no valid URLs configured.");
}

if (!empty($_GET)) {
    $separator = (strpos($destinationUrl, '?') !== false) ? '&' : '?';
    $destinationUrl .= $separator . http_build_query($_GET);
}

header("Location: " . $destinationUrl, true, 302);
exit();
?>