What potential issues can arise when determining the MIME type of a file in PHP?

One potential issue when determining the MIME type of a file in PHP is that the file extension may not always accurately reflect the actual content type. To solve this, you can use the `finfo_file()` function in PHP, which uses file magic to determine the MIME type based on the file contents rather than the extension. 

$file_path = 'example.txt';

$finfo = finfo_open(FILEINFO_MIME_TYPE);
$mime_type = finfo_file($finfo, $file_path);
finfo_close($finfo);

echo "MIME type of $file_path is: $mime_type";

Keywords

file MIME type PHP detection errors

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