使用php cURL发送图像

Question

您好我需要使用PHP cURL发送图像，尝试这样做：

$this->ch = curl_init();
curl_setopt($this->ch, CURLOPT_URL, $URL);
$postValues = array(
            'utf8' => $utf8,
            'authenticity_token' => $auth_token,
            'media_object[title]' => 'something',
            'media_object[source]' => '',
            'media_object[object_type]' => 0,
            'media_object[image]'=>'@/home/me/images/something.jpg',
            'captcha' => $captcha,
        );

$n = 0;
        $postStr = '';
        foreach ($postValues as $name => $value) {
            if ($n == 0)
                $postStr .= $name . '=' . $value;
            else
                $postStr .= '&' . $name . '=' . $value;
            $n++;
        }
        curl_setopt($this->ch, CURLOPT_URL, $url);
        curl_setopt($this->ch, CURLOPT_POSTFIELDS, $postStr);
        curl_setopt($this->ch, CURLOPT_POST,1);
curl_setopt($this->ch, CURLOPT_USERAGENT, "Mozilla/5.0 (Windows NT 5.1; rv:14.0) Gecko/20100101 Firefox/14.0.1");
        curl_setopt($this->ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($this->ch, CURLOPT_FOLLOWLOCATION, 1);
        curl_setopt($this->ch, CURLOPT_COOKIEFILE, TMP.'cookies.txt');
        curl_setopt($this->ch, CURLOPT_COOKIEJAR, TMP.'cookies.txt');
curl_exec($this->ch);

但它不起作用。 当然我试图用这个代码做普通的POST请求，它工作正常，只是当我尝试发布图像它不起作用。

我通过LIVE HTTP HEADERS捕获了标题，它看起来像是：Theese是我用mozilla和addon捕获的正确标题，所以cURL应该做同样的事情：

Content-Type: multipart/form-data; boundary=---------------------------41184676334
Content-Length: 218115
-----------------------------41184676334
Content-Disposition: form-data; name="utf8"

â
-----------------------------41184676334
Content-Disposition: form-data; name="authenticity_token"

0Je50mUpOMdghYgHPH5Xjd8UnbuvzzQLyyACfvGmVgY=
-----------------------------41184676334
Content-Disposition: form-data; name="media_object[title]"

Something
-----------------------------41184676334
Content-Disposition: form-data; name="media_object[source]"


-----------------------------41184676334
Content-Disposition: form-data; name="media_object[object_type]"

0
-----------------------------41184676334
Content-Disposition: form-data; name="media_object[image]"; filename="something.jpg"
Content-Type: image/jpeg

ÿØÿà

有什么不对或有什么不对？ 我试图发送图片的网页返回消息“文件名不能为空！” 还试图在'@ / home / me / images / something.jpg'之后添加; filename =“something.jpg”和; type =“image / jpeg”

Answer 1

我几周前有类似的问题，尝试更改文件的位置或权限。 要找出卷发发送的标题，请尝试以下操作：

curl_setopt(CURLINFO_HEADER_OUT, true);

请求后检索有关标头的信息：

curl_getinfo($this->ch, CURLINFO_HEADER_OUT)

Answer 2

通过删除此部分解决了我的问题：

$n = 0;
        $postStr = '';
        foreach ($postValues as $name => $value) {
            if ($n == 0)
                $postStr .= $name . '=' . $value;
            else
                $postStr .= '&' . $name . '=' . $value;
            $n++;
        }

并改变了这个： curl_setopt($this->ch, CURLOPT_POSTFIELDS, $postStr); 到curl_setopt($this->ch, CURLOPT_POSTFIELDS, $postValues);

Postfields需要是一个数组才能获得“Content-Type：multipart / form-data”。