How to implement batch compression download in php

php method to implement batch compression downloads: [

The operating environment of this article: windows10 system, php 7, thinkpad t480 computer.

In php, we can use the ZipArchive class to compress and package files in batches for download.

Note:

Before using this class, zlib needs to be enabled in Linux, and the comment in front of php_zip.dll needs to be uncommented in Windows.

The following is a simple example of compressing a file into zip format.

<?php 
$filename=&#39;test.zip&#39;; //最终生成的文件名（含路径） 
if(file_exists($filename)){ 
    unlink($filename); 
} 
//重新生成文件 
$zip=new ZipArchive(); 
if($zip->open($filename,ZIPARCHIVE::CREATE)!==TRUE){ 
    exit(&#39;无法打开文件，或者文件创建失败&#39;); 
} 
$datalist=array(&#39;try.php&#39;,&#39;zip_class.php&#39;); 
foreach($datalist as $val){ 
    if(file_exists($val)){ 
        $zip->addFile($val); 
    } 
} 
$zip->close();//关闭 
if(!file_exists($filename)){ 
    exit(&#39;无法找到文件&#39;); //即使创建，仍有可能失败 
}

Remarks:

//向压缩包中添加文件（addFile的第二参数表示，替换的名称，若不写则按照前面的命名，当然如果是带目录，在压缩包中也会生成一个文件夹）
$zip->addFile("./down.php","testfromfile.php");
$zip->addFile('img/images-3.jpg','new.jpg');
echo "numfiles: " . $zip->numFiles . "\n";
echo "status:" . $zip->status . "\n";

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