如何将我们用Java defaltor放气的字符串充气

我正在使用java通过以下函数对字符串进行放气：

protected static byte[] Compress(String source) {
    try {

        // deficne start time
        long startTime = System.currentTimeMillis();

        //get bytes
        byte[] bytes = source.getBytes("UTF-8");

        Deflater deflater = new Deflater();
        deflater.setInput(bytes);
        deflater.finish();
        ByteArrayOutputStream bos = new ByteArrayOutputStream(bytes.length);

        byte[] buffer = new byte[1024];
        while (!deflater.finished()) {

            int bytesCompressed = deflater.deflate(buffer);
            bos.write(buffer, 0, bytesCompressed);
        }

        try {
            //close the output stream
            bos.close();
        } catch (IOException ioe) {
            System.out.println("Error while closing the stream : " + ioe);
        }

        //get the compressed byte array from output stream
        byte[] compressedArray = bos.toByteArray();

        return compressedArray;
    } catch (Exception e) {
        e.printStackTrace();
        return null;
    }
}

$uncompressed = gzinflate($filepath);
echo $uncompressed;
die();

现在，我想通过以下函数用PHP将该字符串膨胀：

protected static byte[] Compress(String source) {
    try {

        // deficne start time
        long startTime = System.currentTimeMillis();

        //get bytes
        byte[] bytes = source.getBytes("UTF-8");

        Deflater deflater = new Deflater();
        deflater.setInput(bytes);
        deflater.finish();
        ByteArrayOutputStream bos = new ByteArrayOutputStream(bytes.length);

        byte[] buffer = new byte[1024];
        while (!deflater.finished()) {

            int bytesCompressed = deflater.deflate(buffer);
            bos.write(buffer, 0, bytesCompressed);
        }

        try {
            //close the output stream
            bos.close();
        } catch (IOException ioe) {
            System.out.println("Error while closing the stream : " + ioe);
        }

        //get the compressed byte array from output stream
        byte[] compressedArray = bos.toByteArray();

        return compressedArray;
    } catch (Exception e) {
        e.printStackTrace();
        return null;
    }
}

$uncompressed = gzinflate($filepath);
echo $uncompressed;
die();

但我在php文件中遇到了数据错误，如何解决这个问题

错误消息是：

警告：gz充气（）：数据错误

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