php - 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 二进制编码数据。我需要将其保存为 zip 文件。我使用如下代码。

<?php
$zipStr = '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';

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

?>

但我得到了一个 SFX zip 存档作为可下载选项。我无法使用 PHP 解压缩。我可以解压其他普通的 zip 文件，但不能解压这个 SFX zip。任何人都可以帮助我将编码数据保存为 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() 将您的字符串作为文件添加到存档中。试试下面的例子。

<?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);