I came through this very funny case while i was developing a site which uses DOMPDF to generate PDF from html.

The problem was I was not getting the images in the PDF generated.

I had url_fopen ON on server.

I had tried all relative and absolute paths for the image.

Everything I could imagine.

While working with custom forms with file upload fields in drupal, you may sometimes get a error regarding extensions:

The specified file “your file name here” could not be uploaded. Only files with the following extensions are allowed: “jpg jpeg gif png txt doc xls pdf ppt pps odt ods odp”

To allow all extensions, you have to manually set the ‘file_validate_extensions’ validator to an empty array.

When you have more than one language on Drupal site, you have to define the default language among one of them. For example, if i set English as the default language, it will be shown in both http://<domain_name> and http://<domain_name>/en. but all the links in the default language will not have the en path prefix.

Who needs Gangnam Style for thier android phone's bootscreen animation.