The functions in the fileinfo module try to guess the content type and encoding of a file by looking for certain magic byte sequences at specific positions within the file. While this is not a bullet proof approach, the heuristics used do a very good job.

You can find more information about fileinfo at – File Information.

Enabling fileinfo

This module is enabled by default on all DreamHost accounts. You can confirm by adding a phpinfo.php file to your website. View the following article for instructions on how to add this file:

After it's been created, view the following URL in your browser:


You should see fileinfo support and enabled in the page that appears.

See also

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