Are there any specific PHP functions or libraries that are recommended for handling MIME formats of files in PHP?

When working with MIME formats of files in PHP, it is recommended to use the `mime_content_type()` function to determine the MIME type of a file. Additionally, the `finfo_open()` and `finfo_file()` functions from the Fileinfo extension can be used to retrieve detailed information about a file's MIME type.

// Get the MIME type of a file using mime_content_type()
$mime_type = mime_content_type('example.jpg');
echo "MIME type: " . $mime_type;

// Get detailed information about a file's MIME type using Fileinfo extension
$finfo = finfo_open(FILEINFO_MIME_TYPE);
$mime_type = finfo_file($finfo, 'example.jpg');
echo "MIME type: " . $mime_type;
finfo_close($finfo);