A few days ago, a client requested a contact form submission to go to an autoimporting email address in a specific format. At first, this wasn’t an issue – a CSV file was fine. However, the client wanted a zipped CSV. At first I thought this was going to be difficult – Linux + Zip? – but it turns out PHP has some nifty functions to create and add to zip files.
Looking into it a bit further it appears it isn’t brilliant – for example, there is a lack of support for NOT compressing the archive – but it did exactly what I required.
I put together a little function to take care of it and make it re-usable. Take a look below.
The solution function
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protected function createZipFile($files = array(), $destination = '', $overwrite = false) { // sanity check if (file_exists($destination) && $overwrite === false) { return false; } // should probably add something to ensure that the files exist? if (count($files)) { $zip = new ZipArchive(); if ($zip->open($destination, $overwrite ? ZIPARCHIVE::OVERWRITE : ZIPARCHIVE::CREATE) !== true) { return false; } foreach($files as $file) { // use basename so that we don't keep the directory structure $zip->addFile($file, basename($file)); } $zip->close(); return true } else { return false; } } |
Making the call
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$files_to_zip = array('path/image1.jpg', 'image2.jpg'); $destination = getcwd() . '/files/filename.zip'; $result = $this->createZipFile($files_to_zip, $destination); |
Image Credit: Key Foster
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