<?php
function check_if_exists($cc)
{
    $result = safe_query("SELECT id FROM country_data WHERE cc_code_2='{$cc}'");

    $data = sqlite_fetch_array($result, SQLITE_NUM);
    // return the id or NULL if no data is avaliable
    return $data ? $data[0] : NULL;
}

$fp = fopen("./ip-to-country.csv", "r");
// read ip information 1 entry at a time
while (($row = fgetcsv($fp, 4096))) {
    foreach ($row as $key => $val) {
        $row[$key] = sqlite_escape_string($val);
    }

    if (!($country_id = check_if_exists($row[2]))) {
        // only insert country data if the country 
        // was not previously encountered
        $res = safe_query("INSERT INTO country_data 
            (cc_code_2, cc_code_3, country_name) 
            VALUES('{$row[2]}', '{$row[3]}', '{$row[4]}')");
        $country_id = sqlite_last_insert_rowid(sqlite_r);
    }

    // insert ip range entry
    safe_query("INSERT INTO ip_ranges 
            (ip_start, ip_end, country_code)
            VALUES({$row[0]}, {$row[1]}, {$country_id})");
}
fclose($fp);
?>