I have developed a site in PHP 5.26, which is running perfectly from the development server. But after uploading the site to the Web server, it is not working. The server is running PHP 4.4. I haven't used any specific features of PHP 5, so the site should have worked fine in PHP 4.4 also.
I am not getting any errors, but no output either. All I can see is a blank page.
Is there a way to find out if the code is not working due to version incompatibility ?
Another problem I am getting is that some popup windows are opening, but not closing automatically from the