function main($ini_file)
{
$install = new Install($ini_file);
$response = $install->step1();
if (is_array($response)) {
$install->print_errors($response);
}
$response = $install->step2();
if (is_array($response)) {
$install->print_errors($response);
}
$response = $install->step3();
if (is_array($response)) {
$install->print_errors($response);
}
$response = $install->step4();
if (is_array($response)) {
$install->print_errors($response);
}
exit(1);
}