Fileinfo
PHP Manual

Constantes pré-definidas

As contantes abaixo são definidas por esta extensão e somente estarão disponíveis quando a extensão foi compilada com o PHP ou carregada dinamicamente durante a execução.

FILEINFO_NONE ( integer )
No special handling.
FILEINFO_SYMLINK ( integer )
Follow symlinks.
FILEINFO_MIME_TYPE ( integer )
Return the mime type. Available since PHP 5.3.0.
FILEINFO_MIME_ENCODING ( integer )
Return the mime encoding of the file. Available since PHP 5.3.0.
FILEINFO_MIME ( integer )
Return the mime type and mime encoding as defined by RFC 2045.
FILEINFO_COMPRESS ( integer )
Decompress compressed files. Disabled since PHP 5.3.0 due to thread safety issues.
FILEINFO_DEVICES ( integer )
Look at the contents of blocks or character special devices.
FILEINFO_CONTINUE ( integer )
Return all matches, not just the first.
FILEINFO_PRESERVE_ATIME ( integer )
If possible preserve the original access time.
FILEINFO_RAW ( integer )
Don't translate unprintable characters to a \ooo octal representation.

Fileinfo
PHP Manual