[英]PHP Script to download files in zip
I'm setting up a script on my server that uses some GET variables sent by a user to decides which files to include in a zip that then gets returned to the user. 我正在服务器上设置脚本,该脚本使用用户发送的一些GET变量来确定要包含在zip中的文件,然后将其返回给用户。 The ZIP file is created dynamically by the script and will always have the name myZip.zip. ZIP文件是由脚本动态创建的,并且始终具有名称myZip.zip。
If I potentially have 100 users calling the script at the same time, and each user may have different files included in the zip, will this work? 如果我可能有100个用户同时调用该脚本,并且每个用户的zip文件中可能包含不同的文件,那么这行得通吗?
Thanks! 谢谢!
example of script: 脚本示例:
<?php
$fileA = 'fileA.xml';
$fileB = 'fileB.xml';
$fileC = 'fileC.xml';
$filesToSend = array();
if(conditionA) {
array_push($filesToSend, $fileA);
}
if(conditionB) {
array_push($filesToSend, $fileB);
}
if(conditionC) {
array_push($filesToSend, $fileC);
}
if(count($filesToSend) > 0) {
$zipname = "myZip.zip";
$zip = new ZipArchive();
$res = $zip->open($zipname, ZipArchive::CREATE);
if ($res === TRUE) {
foreach ($filesToSend as $file) {
$zip->addFile($file);
}
}
else {
echo 'failed, code:' . $res;
}
$zip->close();
header("Cache-Control: no-store, no-cache, must-revalidate");
header("Cache-Control: post-check=0, pre-check=0", false);
header("Pragma: no-cache");
header("Content-type: application/zip");
header('Content-length: '.filesize($zipname));
header('Content-disposition: attachment; filename=' . basename($zipname));
ob_clean();
flush();
readfile($zipname);
@unlink($file);
}
else {
echo "nothing new";
echo $modifiedDate;
}
?>
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