Can anyone tell me why is this
$pole = explode("\n", file_get_contents('obce.txt'));
echo $pole[1]; //in obce.txt it is Test
different from
$pole[1] = "Test";
echo $pole[1];
For me, it seems to be the same thing.
Remember that in Windows the end of line caracters is "\r\n".
Try:
$pole = explode("\r\n", file_get_contents('obce.txt'));