How to create a zip archive from a directory in PHP?

To create a zip archive from a directory in PHP, you can use the ZipArchive class. Here is an example:

// Directory to be zipped
$dirPath = 'path/to/directory';

// Path to save the zip file
$zipPath = 'path/to/save/archive.zip';

// Create a new zip archive
$zip = new ZipArchive();

// Open the zip file for writing
if ($zip->open($zipPath, ZipArchive::CREATE | ZipArchive::OVERWRITE) === true) {
    
    // Create recursive directory iterator
    $files = new RecursiveIteratorIterator(
        new RecursiveDirectoryIterator($dirPath),
        RecursiveIteratorIterator::LEAVES_ONLY
    );
    
    foreach ($files as $name => $file) {
        // Skip directories (we only want files)
        if (!$file->isDir()) {
            // Get the relative path of the file from the base directory
            $filePath = $file->getRealPath();
            $relativePath = substr($filePath, strlen($dirPath) + 1);
            
            // Add the file to the zip archive with its relative path
            $zip->addFile($filePath, $relativePath);
        }
    }

    // Close the zip archive
    $zip->close();
    
    echo 'Zip archive created successfully!';
} else {
    echo 'Failed to create zip archive!';
}

Make sure to replace 'path/to/directory' with the directory path you want to zip, and 'path/to/save/archive.zip' with the desired path to save the zip archive.

This code snippet recursively iterates through all files in the directory using RecursiveIteratorIterator and RecursiveDirectoryIterator. Then, it adds each file to the zip archive using addFile method with its relative path.

If the zip archive is created successfully, it will display a success message; otherwise, it will display a failure message.