What common issues can arise when downloading files using PHP scripts?

One common issue when downloading files using PHP scripts is that the file may not be downloaded correctly due to incorrect headers being set. To solve this, make sure to set the appropriate headers before outputting the file contents. Another issue can be file size limitations or execution time limits being exceeded, which can be resolved by adjusting PHP configuration settings. 

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

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

Keywords

file permissions memory limit file size limit HTTP headers download speed

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