如何使用PHP将base64编码的二进制数据保存为zip

Question

我正在从API请求响应中获取base64二进制编码的数据。我需要将其另存为zip文件。我使用如下代码。

<?php
$zipStr = 'UEsDBBQACAAIABprdEEAAAAAAAAAAAAAAAAWAAAAb2JqZWN0cy9Db250YWN0Lm9iamVjdI2SX0vDMBTF3/cpSt9NOhERyTJCl+Gga6VNBZ9GlmWuI21mk0799ka7P50TXR4C9+R3L5ecg4bvpfK2sjaFrgZ+HwS+JyuhF0X1MvBzNr6684e4h8LGWF0m87UU1nMtlRn4K2s39xAazTfALHUtJBC6hNdBcAuDG1hKyxfcch/3PHeQKox9KuSbaetvbdkoFfNSYqEry4WdpXxdzBE86EdUaNWUlcHjPIpmMZlSBPfSOUTCMMljBv7jwiRmJGSATVh0Efj4kMS0fwlJp2QS/Q2mFOQZTTNAognJfmOXhbKyzoTeSEydSx925Yxx/9PRf9Kd/p0q1eKwVphSwuhoNnL315yvt1Pezay5dXHAShqT1PS14QrBo3yKb7lqJGbJiDwj2BbHjeDZSkjxuVR7v72d363Y5gR2goJgN3i49wlQSwcI3kTEMT8BAACvAgAAUEsDBBQACAAIABprdEEAAAAAAAAAAAAAAAALAAAAcGFja2FnZS54bWxNj00LwjAMhu/7FaN3lzpkiHTdQfDkQUS9StbFWbXtWIsf/96xDzSX5CF53ySieJtH/KTWa2dzNk84i8kqV2lb5+x42MyWrJCR2KG6Y01xN219zq4hNCsA77BJ/MW1ihLlDKScZ8AXYChghQGZjOIuRPg05Ie6Z0Om7FbKtbMBVei0fT7v8aZLAVP7J7BoSG61DydNLwE9Dtbw5y3GP2SaJVzARJGA8XwZfQFQSwcIaf0pNKsAAADwAAAAUEsBAhQAFAAIAAgAGmt0Qd5ExDE/AQAArwIAABYAAAAAAAAAAAAAAAAAAAAAAG9iamVjdHMvQ29udGFjdC5vYmplY3RQSwECFAAUAAgACAAaa3RBaf0pNKsAAADwAAAACwAAAAAAAAAAAAAAAACDAQAAcGFja2FnZS54bWxQSwUGAAAAAAIAAgB9AAAAZwIAAAAA';

header('Content-Type: application/zip');
header('Content-disposition: filename="my.zip"');
$out = base64_decode($zipFileValue);
print($out);

?>

但是我正在获得SFX zip存档作为可下载的选项。我无法使用PHP解压缩。我可以解压缩其他普通的zip文件，但不能解压缩此SFX zip。谁能帮助我将编码数据另存为zip或告诉我如何解压缩SFX zip存档。

Answer 1

您需要为zip存档创建一个临时文件，然后使用ZipArchive（）将字符串作为文件添加到存档中。请尝试下面的示例。

<?php
$zipStr = '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';

// Prepare Tmp File for Zip archive
$file = tempnam("tmp", "zip");
$zip = new ZipArchive();
$zip->open($file, ZipArchive::OVERWRITE);

// Add contents
$zip->addFromString('your_file_name', base64_decode($zipStr));

// Close and send to users
$zip->close();
header('Content-Type: application/zip');
header('Content-Length: ' . filesize($file));
header('Content-Disposition: attachment; filename="file.zip"');
readfile($file);
unlink($file);

Answer 2

我尝试了下面的方法，它很好用，很容易。

$folderPath = "/this is your folder path to save the zip file/";
$zipStr = "UEsDBBQACAAIABprd_etc";
$zip_Array = explode(";base64,", $zipStr);
$zip_contents = base64_decode($zip_Array[1]);
$file = $folderPath . uniqid() . '.zip';
file_put_contents($file, $zip_contents);