What are some potential pitfalls of working with files without extensions in PHP?

Working with files without extensions in PHP can lead to confusion and potential errors when trying to determine the file type or how to handle the file. To avoid these pitfalls, you can use the `pathinfo()` function in PHP to extract the file extension and then use it to determine how to process the file. 

$file = 'example_file_without_extension';
$file_info = pathinfo($file);
$file_extension = $file_info['extension'];

// Now you can use the $file_extension variable to determine how to handle the file

Keywords

file handling file_get_contents pathinfo mime_content_type security vulnerability

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