What could be the possible reasons for receiving the error message "der Zip komprimierter Ordner ist ungültig" when trying to open a created Zip file?

The error message "der Zip komprimierter Ordner ist ungültig" translates to "the Zip compressed folder is invalid." This error typically occurs when the Zip file is corrupted or not properly compressed. To solve this issue, you can try re-compressing the files into a new Zip archive or use a different compression tool to create the Zip file. 

$zip = new ZipArchive;
if ($zip->open('example.zip') === TRUE) {
    $zip->extractTo('/my/extract/folder/');
    $zip->close();
    echo 'Zip file extracted successfully!';
} else {
    echo 'Failed to extract Zip file. Please check if the Zip file is valid.';
}

Keywords

PHP Zip compression error message invalid folder

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