dongluyi5123 2013-09-04 00:10
浏览 87


I have a web server that receives a posted data form, one part of which can be an attached image. I want to use curl to send that information along to a second server. Everything works fine for requests that do not include an image, but when an image is included in the original post I get:

curl error 26: failed creating formpost data

I know this indicates that curl is unable to find the file, but I am having trouble determining exactly why not. Here is the code

if ($_POST) {
  $postData = array();    
  //copy in the post fields that were posted here    
  foreach ($_POST as $key => $value) {
    $postData[$key] = $value;  
  //copy in the files that have been included
  foreach ($_FILES as $key => $value) {
    if ($value["tmp_name"]) { //if null, no file was uploaded              
      $fn = "existing_image.jpg";//(use existing for debugging only
                                 //in reality, would use the tmp image)           
      $postData[$key] = "@" . realpath($fn) . ";type=" . $value["type"];

      $testMsg .= "added file $key value of '" . $postData[$key] .
          "'(" . file_exists($fn) . ")

  $testMsg .= "POSTDATA:
" . print_r($postData, true);

  $options[CURLOPT_POST] = true;        
  $options[CURLOPT_POSTFIELDS] = $postData;  

And here is the output:

added file photo value of '@/var/www/wordpress/somedirectory/php/existing_image.jpg;type=image/jpeg'(1)
    [key1] => 4
    [key2] => blah blah some text
    [key3] => etc
    [keyimage] => @/var/www/wordpress/somedirectory/php/existing_image.jpg;type=image/jpeg

The file indeed exists - why is curl giving me the error? I appreciate any help you can give...

Edit: I do not have this same problem when servers 1 and 2 are the same server (i.e. when I set up a web page on the second server that receives the posted data and then executes the same curl code to send the info along to itself). That probably means something, but I am evidently overlooking something...

  • 写回答

1条回答 默认 最新

  • 普通网友 2013-09-04 14:39

    I'm not sure but perhaps you php or curl version doesn't support setting the content type this way. Try to remove the type= part from your code and let curl decide the content type:

    $postData[$key] = "@" . realpath($fn);

    You could also try setting the CURLOPT_VERBOSE flag to true and see if you get a more descriptive error message.

    本回答被题主选为最佳回答 , 对您是否有帮助呢?



  • ¥15 BP神经网络控制倒立摆
  • ¥20 要这个数学建模编程的代码 并且能完整允许出来结果 完整的过程和数据的结果
  • ¥15 html5+css和javascript有人可以帮吗?图片要怎么插入代码里面啊
  • ¥30 Unity接入微信SDK 无法开启摄像头
  • ¥20 有偿 写代码 要用特定的软件anaconda 里的jvpyter 用python3写
  • ¥20 cad图纸,chx-3六轴码垛机器人
  • ¥15 移动摄像头专网需要解vlan
  • ¥20 access多表提取相同字段数据并合并
  • ¥20 基于MSP430f5529的MPU6050驱动,求出欧拉角
  • ¥20 Java-Oj-桌布的计算