TimeTrex Time and Attendance

To tackle the problem i need to understand what this code is doin(install.php)

*/
ini_set('default_socket_timeout', 5);
ini_set('allow_url_fopen', 1);

if ( isset($_GET['external_installer']) ) {
$external_installer = (int)$_GET['external_installer'];
}else {
$external_installer = 0;

please help.

has anyone sorted the above problem?my display_errors in php.ini is also on.

sorry i've sorted the above problem.bt am also having a blank page whn tryin to install.when I run localhost/timetrex/interface/install/install.php its redirects me to a blank page with url localhost/timetrex/interface/install/Licence.php?externalinstaller=0. display_errors in php.ini = on. please h...

am also having a problem when tryn to install it in xampp stating config file (c:\xampp\htdocs\timetrex\includes\..\timetrex.ini.php) does not exist.will be grateful for any assistance.