What potential server-side factors could be causing certain file types to fail downloading while others work successfully in PHP scripts?

The issue of certain file types failing to download while others work successfully in PHP scripts could be caused by server-side factors such as incorrect MIME types, file permissions, or server configuration settings. To solve this issue, ensure that the correct MIME type is set for each file type, check and adjust file permissions to allow downloads, and review server configuration settings that may be restricting certain file types from being downloaded. 

// Example code snippet to set the correct MIME type for downloading files
$file = 'example.pdf';
$mime_type = 'application/pdf';

header('Content-Type: ' . $mime_type);
header('Content-Disposition: attachment; filename="' . basename($file) . '"');
readfile($file);
exit;

Keywords

server-side factors file types downloading PHP scripts error types

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