Easily Zip Your Files Using PHP
Sending multiple files to a user at once is as old as the internet is. The most commonly recognized format for compressing your files would be the zip format. By zipping your data you can make it use less resources to transmit to the user. It’s also a good way to clean up clutter. PHP has a very simple way of doing this.
Snippet:
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<?php
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// ZIP a file with PHP
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// http://thedevnet.com/php/snippets/zip-files-with-php/
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/* creates a compressed zip file */
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function create_zip($files = array(),$destination = '',$overwrite = false) {
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//if the zip file already exists and overwrite is false, return false
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if(file_exists($destination) && !$overwrite) { return false; }
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//vars
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$valid_files = array();
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//if files were passed in…
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if(is_array($files)) {
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//cycle through each file
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foreach($files as $file) {
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//make sure the file exists
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if(file_exists($file)) {
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$valid_files[] = $file;
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}
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}
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}
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//if we have good files…
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if(count($valid_files)) {
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//create the archive
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$zip = new ZipArchive();
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if($zip->open($destination,$overwrite ? ZIPARCHIVE::OVERWRITE : ZIPARCHIVE::CREATE) !== true) {
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return false;
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}
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//add the files
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foreach($valid_files as $file) {
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$zip->addFile($file,$file);
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}
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//debug
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//echo 'The zip archive contains ',$zip->numFiles,' files with a status of ',$zip->status;
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//close the zip — done!
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$zip->close();
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//check to make sure the file exists
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return file_exists($destination);
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}
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else {
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return false;
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}
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}
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?>
Example Usage:
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<?php
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// http://thedevnet.com/php/snippets/zip-files-with-php/
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$files=array('file1.jpg', 'file2.jpg', 'file3.gif');
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create_zip($files, 'myzipfile.zip', true);
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?>
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Originally posted 2009-10-23 10:17:51.
Popularity: 7%
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