Does anyone have an idea on this??
It will depend on your host’s php settings. Specifically the max upload setting. An easy way to see all these settings is to create a blank php file and add this code to it.
<html>
<? php
phpinfo();
?>
</html>
Then just upload the file somewhere on your website and name it something like phptest.php, then just point your browser to the file and it will show you all these settings. After your done though make sure to disable it by removing the .php extension off the file.