What are common issues when downloading files using PHP scripts and how can they be resolved?

Issue: One common issue when downloading files using PHP scripts is that the downloaded file may be corrupted or incomplete due to improper handling of headers or output buffering. This can be resolved by ensuring that the correct headers are set before outputting the file contents, and by disabling output buffering. 

// Set the appropriate headers for the file download
header('Content-Type: application/octet-stream');
header('Content-Disposition: attachment; filename="example.txt"');

// Disable output buffering
while (ob_get_level()) {
    ob_end_clean();
}

// Output the file contents
readfile('path/to/example.txt');

Keywords

file download PHP scripts headers content-disposition MIME type

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