PHP 中的 Base64 到 PDF - 获取损坏的文件

Question

我正在尝试使用 PHP 从 Base64 字符串生成 PDF。当我将它粘贴到浏览器或使用 base64.guru 站点时，base64 正在工作，但是每次它在本地写入以及当我尝试打开它时，它都说它已损坏。

Base64 字符串是

$text = 'data:application/pdf;base64,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

$data = sanitize_text_field(base64_encode($text));
file_put_contents('output.pdf', base64_decode($data));

Answer 1

尝试删除“数据：应用程序/pdf；base64，”