php上傳圖片到微博圖床

mudiyouyou 發(fā)布于2019-06-27 15:34 / 2827人閱讀

摘要：今天就用來上傳圖片到微博，這也是來自的一個(gè)問題里面還提到一個(gè)版本有種方式實(shí)現(xiàn)上傳圖片如果要用這個(gè)的話參數(shù)必須是，值為經(jīng)過編碼后的字符串。使用上傳登錄微博獲取就是微博圖片，訪問即可打開圖片這里我上傳的是的廣告圖。

微博是個(gè)好圖床，上傳后就可以通過一個(gè)url來訪問了。今天就用php來上傳圖片到微博，這也是來自sf的一個(gè)問題, 里面還提到一個(gè)python版本.

有2種方式實(shí)現(xiàn)上傳圖片:

如果要用 http://picupload.service.weib... 這個(gè) URL 的話POST 參數(shù)必須是 b64_data，值為經(jīng)過 base64 編碼后的字符串。
如果要使用 pic1 參數(shù)的話，則要用 multipart 方式進(jìn)行上傳，且 URL 中必須包含 cb 參數(shù)，cb 參數(shù)的值為 http://weibo.com/aj/static/up... 加(js)時(shí)間戳

以下為php實(shí)現(xiàn),感謝這個(gè)問題下@consatan 的回復(fù)，這里做個(gè)總結(jié)。

使用base64上傳

$cookie = "your cookie";//登錄微博network獲取
$ch = curl_init("http://picupload.service.weibo.com/interface/pic_upload.php"
    . "?mime=image%2Fjpeg&data=base64&url=0&markpos=1&logo=&nick=0&marks=1&app=miniblog");

curl_setopt_array($ch, [
    CURLOPT_POST => true,
    CURLOPT_VERBOSE => true,
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_HTTPHEADER => ["Cookie: $cookie"],
    CURLOPT_POSTFIELDS => ["b64_data" => base64_encode(file_get_contents("./sf.jpg"))],
]);

$res = curl_exec($ch);
curl_close($ch);
print_r($res);
/*
{"code":"A00006","data":{"count":1,"data":"eyJ1aWQiOjMyNDMwMjYyMzcsImFwcCI6Im1pbmlibG9nIiwiY291bnQiOjEsInRpbWUiOjE0ODc3NDIyMDYuMzIxLCJwaWNzIjp7InBpY18xIjp7IndpZHRoIjo1MTAsInNpemUiOjUyOTMzLCJyZXQiOjEsImhlaWdodCI6MzMwLCJuYW1lIjoicGljXzEiLCJwaWQiOiJjMTRjYTczZGx5MWZjejcxejNyN25qMjBlNjA5NnE1ZiJ9fX0=","pics":{"pic_1":{"width":510,"size":52933,"ret":1,"height":330,"name":"pic_1","pid":"c14ca73dly1fcz71z3r7nj20e6096q5f"}}}}
$data=base64_decode($res["data"]["data"])
{"uid":3243026237,"app":"miniblog","count":1,"time":1487742206.321,"pics":{"pic_1":{"width":510,"size":52933,"ret":1,"height":330,"name":"pic_1","pid":"c14ca73dly1fcz71z3r7nj20e6096q5f"}}}
*/
//c14ca73dly1fcz71z3r7nj20e6096q5f就是微博圖片id，訪問http://ww3.sinaimg.cn/large/c14ca73dly1fcz39h7mo3j20e6096q5f即可打開圖片,這里我上傳的是sf的廣告圖。

multipart 方式上傳

$cookie = "your cookie";//登錄微博network獲取
$post_data["pic1"]=new CURLFile(realpath("sf.jpg"));
$time=substr(strval(microtime(true) * 1000), 0, 13) . 1;
        $url="http://picupload.service.weibo.com/interface/pic_upload.php?mime=image%2Fjpeg&data=base64&url=0&markpos=1&logo=&nick=0&marks=1&app=miniblog&cb=http://weibo.com/aj/static/upimgback.html?_wv=5&callback=STK_ijax_".time();
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_COOKIE, $cookie); 
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
//multipart 方式上傳需要注意傳遞的參數(shù)是數(shù)組，不是字符串
curl_setopt($ch, CURLOPT_POSTFIELDS, $post_data);
//curl_setopt($ch, CURLOPT_HEADER, 1);
// curl_setopt($ch, CURLOPT_NOBODY, 0);
$output = curl_exec($ch);
$rinfo=curl_getinfo($ch); 
print_r($output);
curl_close($ch);
/*
{"code":"A20001","data":{"count":2,"data":"eyJ1aWQiOjMyNDMwMjYyMzcsImFwcCI6Im1pbmlibG9nIiwiY291bnQiOjIsInRpbWUiOjE0ODc3MzQzMzUuNDU3LCJwaWNzIjp7InBpY18yIjp7InJldCI6LTIsIm5hbWUiOiJwaWNfMiJ9LCJwaWNfMSI6eyJ3aWR0aCI6NTEwLCJzaXplIjo1MjkzMywicmV0IjoxLCJoZWlnaHQiOjMzMCwibmFtZSI6InBpY18xIiwicGlkIjoiYzE0Y2E3M2RseTFmY3ozOWg3bW8zajIwZTYwOTZxNWYifX19","pics":{"pic_2":{"ret":-2,"name":"pic_2"},"pic_1":{"width":510,"size":52933,"ret":1,"height":330,"name":"pic_1","pid":"c14ca73dly1fcz39h7mo3j20e6096q5f"}}}} 
*/
//從結(jié)果中獲取pid即可,這里發(fā)現(xiàn)上傳同一張圖片返回的pid是相同的，看來微博有處理，也許是比較文件的md5.

這里需要注意php不同版本上傳圖片的處理,參考這個(gè)鏈接，傳統(tǒng)上，PHP的cURL支持通過在數(shù)組數(shù)據(jù)中，使用“@+文件全路徑”的語法附加文件，供cURL讀取上傳,但PHP從5.5開始引入了新的CURLFile類用來指向文件,所以做個(gè)處理:

if (class_exists("CURLFile")) {
    $field = array("fieldname" => new CURLFile(realpath($filepath)));
} else {
    $field = array("fieldname" => "@" . realpath($filepath));
}