Use the ZipArchive class to create a ZIP file. First instantiate and open the target zip, add files with addFile, support custom internal paths, recursive functions can package the entire directory, and finally call close to save to ensure that PHP has write permissions.
To create a zip archive of files in PHP, you can use the built-in ZipArchive class. This class allows you to create, modify, and extract ZIP archives easily.
Create a Zip Archive from Files
Here's how to create a zip file from one or more files:
$zip = new ZipArchive();
$zipFile = 'archive.zip';
// Open the zip file (create if it doesn't exist)
if ($zip->open($zipFile, ZipArchive::CREATE) !== TRUE) {
die("Cannot create zip file");
}
// List of files to add
$files = ['file1.txt', 'file2.jpg', 'folder/document.pdf'];
foreach ($files as $file) {
if (file_exists($file)) {
$zip->addFile($file, basename($file)); // Second parameter controls name inside zip
}
}
$zip->close();
echo "Zip archive created: $zipFile";
Add Files with Custom Paths Inside the Zip
You can organize files in directories within the zip by specifying a different internal path:
$zip->addFile('local/path/image.jpg', 'images/photo.jpg');
$zip->addFile('docs/readme.txt', 'project/docs/readme.txt');
Add Entire Directory Recursively
If you want to zip all files in a directory (including subdirectories), use a recursive function:
function addFolderToZip($dir, $zipArchive, $zipPath = '') {
$files = scandir($dir);
foreach ($files as $file) {
if ($file === '.' || $file === '..') continue;
$filePath = "$dir/$file";
$entryName = $zipPath === '' ? $file : "$zipPath/$file";
if (is_dir($filePath)) {
$zipArchive->addEmptyDir($entryName);
addFolderToZip($filePath, $zipArchive, $entryName);
} else {
$zipArchive->addFile($filePath, $entryName);
}
}
}
// Usage
$zip = new ZipArchive();
if ($zip->open('backup.zip', ZipArchive::CREATE) === TRUE) {
addFolderToZip('my_folder', $zip);
$zip->close();
}
Basically just use ZipArchive , add your files with addFile() , and call close() to save. Make sure PHP has write permissions to the target directory. It's reliable and doesn't require extra extensions in most settings.
The above is the detailed content of How to create a zip archive of files in PHP?. For more information, please follow other related articles on the PHP Chinese website!
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