文件上传

底层自动协程调度, 可支持异步发送超大文件, 断点续传

同时上传三个文件(三种参数风格string| array |object)

$file1 = __DIR__ . '/black.png';
$file2 = [
    'path' => __DIR__ . '/black.png',
    'name' => 'white.png',
    'type' => ContentType::MAP['png'],
    'offset' => null, //re-upload from break
    'size' => null //upload a part of the file
];
$file3 = new SwUploadFile(
    __DIR__ . '/black.png',
    'white.png',
    ContentType::MAP['png']
);
echo SaberGM::post('http://httpbin.org/post', null, [
        'files' => [
            'image1' => $file1,
            'image2' => $file2,
            'image3' => $file3
        ]
    ]
);