cpt_balances.php

<?php

$fileName = 'balances.csv';
file_put_contents($fileName, "address;balance\r\n");

$addresses_str = "0x1c1f7cf92e3fd0cc449ef08724a6c59c06a33c9c
0xaba2f30af702f3d250a54566bf840bdbcfd8b05c
0xf9f3bf7fdfd156fa73c18e3b1b9780981a8227dc
0xab5f64fbad42c114ba6d80bd3818d68d9b85ecb4
0x2243211fd15243a273fa23a3271d0c28a40a1dbb
0x817984053851ec4b3c4e412be800a4868564b420";

$addresses = explode("\n", $addresses_str);
$count = count($addresses);
foreach ($addresses as $i => $address) {
    echo "Progress i: $i count: $count\r";
    $data = @json_decode(file_get_contents("https://api.etherscan.io/api?module=account&action=tokenbalance&contractaddress=0x88d50b466be55222019d71f9e8fae17f5f45fca1&address=$address&tag=latest"), true);
    if ($data['status'] != 1) {
        echo "\r\nERROR $address\r\n";
    }
    $balance = bcdiv($data['result'], '100000000', 8);
    file_put_contents($fileName, "$address;$balance\r\n", FILE_APPEND);
    if ($i % 15) {
        sleep(1);
    }
}

example_balances.csv

address;balance
0x1c1f7cf92e3fd0cc449ef08724a6c59c06a33c9c;636476.00000000
0xaba2f30af702f3d250a54566bf840bdbcfd8b05c;3000.00000000
0xf9f3bf7fdfd156fa73c18e3b1b9780981a8227dc;30000.00000001
0xab5f64fbad42c114ba6d80bd3818d68d9b85ecb4;170097.98256825
0x2243211fd15243a273fa23a3271d0c28a40a1dbb;757658.49158100
0x817984053851ec4b3c4e412be800a4868564b420;854.00000000