<?php
set_time_limit(0);
ignore_user_abort(1);
$array = file('uin.txt');
$count = count($array);
$array2 = file('pass.txt');
$count2 = count($array2);
$fp = fopen('source.txt', 'w');
flock ($fp, LOCK_EX);
for ($n2 = 0; $n2 < $count2; $n2++) {
    for ($n = 0; $n < $count; $n++) {
        fputs($fp, intval($array[$n]).';'.$array2[$n2]);
    }
}
flock ($fp, LOCK_UN);
fclose($fp);
?>