PHP provides built-in functionality to create ZIP archives using the In this article, we will explain how to compress a directory, including its files and subdirectories, into a ZIP archive and automatically download the generated ZIP file using PHP<\/strong>.<\/p>\n\n\n\n Before proceeding, make sure the following requirements are available:<\/p>\n\n\n\n Define the directory that needs to be compressed and the name of the ZIP file:<\/p>\n\n\n\n Here:<\/p>\n\n\n\n Use This provides the actual filesystem path required by the ZIP operation.<\/p>\n\n\n\n Create a new The Use This allows PHP to iterate through all files contained within the directory, including files located inside subdirectories.<\/p>\n\n\n\n Use a The script checks whether the current item is a file. If it is not a directory, the file is added to the ZIP archive.<\/p>\n\n\n\n The relative path ensures that the directory structure is maintained inside the ZIP file.<\/p>\n\n\n\n After all files have been added, close the ZIP archive:<\/p>\n\n\n\n Set the appropriate HTTP headers and read the generated ZIP file:<\/p>\n\n\n\n These headers instruct the browser to download the generated ZIP file instead of displaying it.<\/p>\n\n\n\n The complete PHP script is shown below:<\/p>\n\n\n\n The script creates a ZIP archive containing the files and subdirectories under the Using PHP’s After the ZIP file is created, PHP headers and For large directories, make sure the server has sufficient disk space, memory, execution time, and permissions to complete the ZIP operation successfully.<\/p>\n\n\n\n The PHP You can check whether it is enabled with:<\/p>\n\n\n\n Yes. Yes. The script calculates the relative path of each file and stores it in the ZIP archive, preserving the directory structure.<\/p>\n\n\n\n The HTTP headers tell the browser that the generated file should be treated as a downloadable file rather than displayed as webpage content.<\/p>\n\n\n\n Managing Multiple PHP Versions on Ubuntu Using APT – Pheonix Solutions<\/a><\/p>\n\n\n\nZipArchive<\/code> class. This can be useful when you need to allow users to download multiple files and subdirectories as a single ZIP file.<\/p>\n\n\n\nPrerequisites<\/h2>\n\n\n\n
\n
zip<\/code> extension is enabled.<\/li>\n\n\n\nImplementation<\/h2>\n\n\n\n
1. Define the Source Directory and ZIP File<\/h3>\n\n\n\n
$dir = 'target';
$zip_file = 'file.zip';<\/pre>\n\n\n\n\n
$dir<\/code> specifies the directory that needs to be compressed.<\/li>\n\n\n\n$zip_file<\/code> specifies the name of the ZIP file that will be generated and downloaded.<\/li>\n<\/ul>\n\n\n\n2. Get the Directory Path<\/h3>\n\n\n\n
realpath()<\/code> to obtain the absolute path of the source directory:<\/p>\n\n\n\n$rootPath = realpath($dir);<\/pre>\n\n\n\n
3. Initialize the ZIP Archive<\/h3>\n\n\n\n
ZipArchive<\/code> object and open the ZIP file:<\/p>\n\n\n\n$zip = new ZipArchive();
$zip->open($zip_file, ZipArchive::CREATE | ZipArchive::OVERWRITE);<\/pre>\n\n\n\nCREATE<\/code> option creates the ZIP file if it does not already exist, while OVERWRITE<\/code> replaces an existing ZIP file.<\/p>\n\n\n\n4. Find Files and Subdirectories Recursively<\/h3>\n\n\n\n
RecursiveDirectoryIterator<\/code> together with RecursiveIteratorIterator<\/code> to process the source directory and its subdirectories:<\/p>\n\n\n\n$files = new RecursiveIteratorIterator(
new RecursiveDirectoryIterator($rootPath)
);<\/pre>\n\n\n\n5. Add Files to the ZIP Archive<\/h3>\n\n\n\n
foreach<\/code> loop to add each file to the ZIP archive:<\/p>\n\n\n\nforeach ($files as $name => $file)
{
if (!$file->isDir())
{
$filePath = $file->getRealPath();
$relativePath = substr($filePath, strlen($rootPath) + 1);
$zip->addFile($filePath, $relativePath);
}
}<\/pre>\n\n\n\n6. Close the ZIP Archive<\/h3>\n\n\n\n
$zip->close();<\/pre>\n\n\n\n
7. Download the ZIP File Automatically<\/h3>\n\n\n\n
header('Content-Description: File Transfer');
header('Content-Type: application\/octet-stream');
header('Content-Disposition: attachment; filename=' . basename($zip_file));
header('Content-Transfer-Encoding: binary');
header('Expires: 0');
header('Cache-Control: must-revalidate');
header('Pragma: public');
header('Content-Length: ' . filesize($zip_file));
readfile($zip_file);<\/pre>\n\n\n\nComplete PHP Code<\/h3>\n\n\n\n
open($zip_file, ZipArchive::CREATE | ZipArchive::OVERWRITE) !== TRUE) {
exit('Unable to create ZIP file.');
}
$files = new RecursiveIteratorIterator(
new RecursiveDirectoryIterator($rootPath)
);
foreach ($files as $name => $file) {
if (!$file->isDir()) {
$filePath = $file->getRealPath();
$relativePath = substr($filePath, strlen($rootPath) + 1);
$zip->addFile($filePath, $relativePath);
}
}
$zip->close();
if (file_exists($zip_file)) {
header('Content-Description: File Transfer');
header('Content-Type: application\/octet-stream');
header('Content-Disposition: attachment; filename=' . basename($zip_file));
header('Content-Transfer-Encoding: binary');
header('Expires: 0');
header('Cache-Control: must-revalidate');
header('Pragma: public');
header('Content-Length: ' . filesize($zip_file));
readfile($zip_file);
exit;
}
?><\/pre>\n\n\n\ntarget<\/code> directory and automatically starts the download in the browser.<\/p>\n\n\n\nConclusion<\/h2>\n\n\n\n
ZipArchive<\/code> class, you can easily compress a directory and its contents into a ZIP archive. The RecursiveDirectoryIterator<\/code> allows the script to include files from subdirectories while preserving their relative directory structure.<\/p>\n\n\n\nreadfile()<\/code> can be used to automatically send the archive to the user’s browser for download.<\/p>\n\n\n\nFAQs<\/h2>\n\n\n\n
1. What is
ZipArchive<\/code> in PHP?<\/h3>\n\n\n\nZipArchive<\/code> is a PHP class that allows applications to create, open, modify, and extract ZIP archives.<\/p>\n\n\n\n2. What PHP extension is required?<\/h3>\n\n\n\n
zip<\/code> extension must be enabled to use the ZipArchive<\/code> class.<\/p>\n\n\n\nphp -m | grep zip<\/pre>\n\n\n\n
3. Can this script include subdirectories?<\/h3>\n\n\n\n
RecursiveDirectoryIterator<\/code> recursively processes the source directory and its subdirectories.<\/p>\n\n\n\n4. Will the directory structure be preserved?<\/h3>\n\n\n\n
Related Article<\/h2>\n\n\n\n