How to batch compress files using PHP ZipArchive

How to use PHP ZipArchive to batch compress files

Introduction:
When developing a website or application, sometimes you need to compress multiple files for easy transmission or storage. PHP provides the ZipArchive class to help us implement file compression and decompression operations. This article will introduce how to use the PHP ZipArchive class to batch compress files, with code examples.

Step 1: Create a ZipArchive instance
First, we need to create a ZipArchive instance for file compression and decompression operations.

$zip = new ZipArchive;

Step 2: Create a compressed file
Next, we need to create a new compressed file and specify its name and opening mode.

$zipName = 'compressed.zip';
$zipMode = ZipArchive::CREATE;

if ($zip->open($zipName, $zipMode) === TRUE) {
    // 文件压缩操作将在这里执行
    $zip->close();
} else {
    // 压缩文件创建失败的处理逻辑
    echo '无法创建压缩文件';
}

Step 3: Add files to the compressed file
Once we have created the compressed file, we can add the files that need to be compressed to it. We can use the addFile method of the ZipArchive class to achieve this.

$file1 = 'file1.txt';
$file2 = 'file2.txt';
$file3 = 'file3.txt';

$zip->addFile($file1);
$zip->addFile($file2);
$zip->addFile($file3);

Step 4: Close the compressed file
After we complete the adding operation of the file, we need to close the compressed file in order to save and release resources.

$zip->close();

Complete sample code:

$zip = new ZipArchive;

$zipName = 'compressed.zip';
$zipMode = ZipArchive::CREATE;

if ($zip->open($zipName, $zipMode) === TRUE) {
    $file1 = 'file1.txt';
    $file2 = 'file2.txt';
    $file3 = 'file3.txt';

    $zip->addFile($file1);
    $zip->addFile($file2);
    $zip->addFile($file3);

    $zip->close();

    echo '文件已成功压缩';
} else {
    echo '无法创建压缩文件';
}

Summary:
Using the PHP ZipArchive class can conveniently perform file compression and decompression operations. Through the introduction and sample code of the above steps, I believe you have mastered how to use the PHP ZipArchive class to implement batch compression of files. I hope this article can help you in the development process.

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