How can special characters in file names affect file downloads in Internet Explorer and how can this be mitigated in PHP?

Special characters in file names can cause issues with file downloads in Internet Explorer because it may not properly handle these characters. To mitigate this issue in PHP, you can use the `urlencode()` function to encode the file name before sending it as a download. 

$filename = "file_with_special_characters.txt";
$encoded_filename = urlencode($filename);

header("Content-Disposition: attachment; filename=\"$encoded_filename\"");
readfile($filename);

Keywords

special characters file names file downloads Internet Explorer mitigation

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