What potential issues can arise when dealing with files without extensions in PHP?

Files without extensions in PHP can cause issues when trying to determine the file type or when relying on the extension to determine how the file should be processed. To solve this issue, you can use the `pathinfo()` function in PHP to get information about the file, including the extension. This way, you can still determine the file type and handle it accordingly. 

$file = 'file_without_extension';
$extension = pathinfo($file, PATHINFO_EXTENSION);

// Now you can use the $extension variable to determine how to process the file

Keywords

file handling file extension mime type pathinfo fileinfo

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