Question

我正在尝试通过PHP将图像上传到IMGUR。这是代码：

<?
$filename = "image.jpg";
$handle = fopen($filename, "r");
$data = fread($handle, filesize($filename));

// $data is file data
$pvars   = array('image' => base64_encode($data), 'mykey' => IMGUR_API_KEY);
$timeout = 30;
$curl    = curl_init();

curl_setopt($curl, CURLOPT_URL, 'http://api.imgur.com/2/upload.xml');
curl_setopt($curl, CURLOPT_TIMEOUT, $timeout);
curl_setopt($curl, CURLOPT_POST, 1);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($curl, CURLOPT_POSTFIELDS, $pvars);

$xml = curl_exec($curl);

curl_close ($curl);

＆GT;

这是我收到的错误消息：

警告：fopen（image.jpg）无法打开流：没有这样的文件或目录

我不明白这部分：$ filename =“image.jpg”; 文件名来自何处，因为它是base64生成的字符串？谢谢，鲍勃

Answer 1

该警告是因为fopen试图从运行脚本的目录中读取文件image.jpg。关于如何通过curl传输文件的一个很好的例子可以在这里看到

Send file via cURL from form POST in PHP

他们有$ localFile = $ _FILES [$ fileKey] ['tmp_name'];你会把$ localFile ='/ path / to / image.jpg';除了更改服务器信息并添加任何其他变量，您可能需要传递给imgur。

Answer 2

更改第1行：

$filename = "image.jpg";

要：

$filename = $_FILES['uploaded_file']['tmp_name'];

然后，发布...我推荐一个类似于此的表格：

    <form enctype="multipart/form-data" method="post" action="upload.php" target="my_iframe">
    Choose your file here:
    <input name="uploaded_file" type="file"/>
    <input type="submit" value="Upload It"/>
    </form>
<!-- when the form is submitted, the server response will appear in this iframe -->
<script language="JavaScript">
<!--
function autoResize(id){
    var newheight;
    var newwidth;

    if(document.getElementById){
        newheight=document.getElementById(id).contentWindow.document .body.scrollHeight;
        newwidth=document.getElementById(id).contentWindow.document .body.scrollWidth;
    }

    document.getElementById(id).height= (newheight) + "px";
    document.getElementById(id).width= (newwidth) + "px";
}
//-->
</script>

<IFRAME name="my_iframe" width="100%" height="200px" id="iframe1" marginheight="0" frameborder="0" onLoad="autoResize('iframe1');"></iframe>

如果你将所有的php放入upload.php然后在同一目录的页面上放置该表单，它就非常接近功能......除了你的源中还没有API_KEY。您可以在此处获取API密钥：https://imgur.com/register/api_anon

最后你的php应该是这样的：

    <?
    if( isset($_FILES['uploaded_file']) )
{
    $IMGUR_API_KEY = 'u432ewriuq3oirefuie'; //put your api key here
    $filename = $_FILES['uploaded_file']['tmp_name'];
    $handle = fopen($filename, "r");
    $data = fread($handle, filesize($filename));

    //$data is file data
    $pvars   = array('image' => base64_encode($data), 'key' => $IMGUR_API_KEY);
    #$pvars   = array('key' => $IMGUR_API_KEY);
    $timeout = 30;
    $curl    = curl_init();

    curl_setopt($curl, CURLOPT_URL, 'http://api.imgur.com/2/upload.xml');
    #curl_setopt($curl, CURLOPT_URL, 'http://api.imgur.com/2/gallery.xml');
    curl_setopt($curl, CURLOPT_TIMEOUT, $timeout);
    curl_setopt($curl, CURLOPT_POST, 1);
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($curl, CURLOPT_POSTFIELDS, $pvars);
    $xml = curl_exec($curl);
    $xmlsimple = new SimpleXMLElement($xml);
    echo '<img height="180" src="';
    echo $xmlsimple->links->original;
    echo '">';

    curl_close ($curl);
    }
?>

通过PHP和cURL上传IMGUR文件

2 个答案: