无法上传文件与curl在heroku php应用程序 [英] Failing to upload file with curl in heroku php app

问题描述

每当我尝试上传文件时，我收到来自curl的响应failed creating formpost data。我从网络上的其他帖子感觉到它的文件路径是错误的，但我似乎无法获得一个绝对路径heroku。

当我做 dirname（__ FILE __）所有我得到的是 / app / www / ，不能是正确的吗？如何在heroku应用程序中获取绝对文件路径？

这是我的整行文件路径，包括在post数据

 @dirname（__ FILE __）。/ images / wallimages /'。random_pic（）
  pre> 
 
 
和我的卷曲设置：
  $ ch = curl_init 'https://url.com/'.$url）; 
 curl_setopt（$ ch，CURLOPT_POST，true）; 
 curl_setopt（$ ch，CURLOPT_POSTFIELDS，$ attachment）; 
 curl_setopt（$ ch，CURLOPT_RETURNTRANSFER，1）; 
 curl_setopt（$ ch，CURLOPT_SSL_VERIFYPEER，false）; 
 $ result = curl_exec（$ ch）; 
 if（curl_errno（$ ch））
 {
 return'Curl error：'。 curl_error（$ ch）; 
} 
 curl_close（$ ch）; 
 return $ result; 
  
 
 
解决方案
我怀疑问题的根本原因可能是
 
 
从PHP 5.2.0开始，如果文件被传递到此选项的@前缀，则值必须是一个数组。
 
 
无论如何，尝试这个代码，如果它不工作，让我知道你得到什么错误信息所以我可以调试：
  $ uploadPath = rtrim（dirname（__ FILE __），'/'）。/ images / wallimages / '.random_pic（）; 
 if（！is_file（$ uploadPath））die（文件'$ uploadPath'不存在）; 
 if（！is_readable（$ uploadPath））die（文件'uploadPath'不可读）; 
 
 $ postFields = array（
'nameOfFileControl'=>@ $ uploadPath，
'someOtherFormControl'=>'某些值'
 //调整这个数组与你的post字段匹配。
 //确保数组保持这种格式！
）; 
 
 $ ch = curl_init（'https://url.com/'.$url）; 
 curl_setopt（$ ch，CURLOPT_POST，TRUE）; 
 curl_setopt（$ ch，CURLOPT_POSTFIELDS，$ postFields）; 
 curl_setopt（$ ch，CURLOPT_RETURNTRANSFER，TRUE）; 
 curl_setopt（$ ch，CURLOPT_SSL_VERIFYPEER，FALSE）; 
 
 $ result = curl_exec（$ ch）; 
 
 if（curl_errno（$ ch））
 {
 return'Curl error：'。 curl_error（$ ch）; 
} 
 curl_close（$ ch）; 
 return $ result; 
  
 
I'm getting the response "failed creating formpost data" from curl whenever I try to upload a file. I'm sensing from other posts on the web that it's the filepath that's wrong, but I can't seem to get an absolute path on heroku.

When i do dirname(__FILE__) all I get is /app/www/ that can't be right can it? How do I get the absolute file path in a heroku app?

this is my entire line for the image path to be included in post data 
"@".dirname(__FILE__).'/images/wallimages/'.random_pic()
and my curl setup:
$ch = curl_init('https://url.com/'.$url);
    curl_setopt($ch, CURLOPT_POST, true);
    curl_setopt($ch, CURLOPT_POSTFIELDS, $attachment);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
    $result = curl_exec($ch);
    if(curl_errno($ch))
    {
        return 'Curl error: ' . curl_error($ch);
    }
    curl_close ($ch);
    return $result;

解决方案
I suspect the root cause of your problem may be this line from the manual:

  
As of PHP 5.2.0, value must be an array if files are passed to this option with the @ prefix.
In any case, try this code and if it doesn't work, let me know what error message(s) you get so I can debug:
$uploadPath = rtrim(dirname(__FILE__),'/').'/images/wallimages/'.random_pic();
if (!is_file($uploadPath)) die("The file '$uploadPath' does not exist");
if (!is_readable($uploadPath)) die("The file '$uploadPath' is not readable");

$postFields = array (
  'nameOfFileControl' => "@$uploadPath",
  'someOtherFormControl' => 'some value'
  // Adjust this array to match your post fields.
  // Ensure you keep the array in this format!
);

$ch = curl_init('https://url.com/'.$url);
curl_setopt($ch, CURLOPT_POST, TRUE);
curl_setopt($ch, CURLOPT_POSTFIELDS, $postFields);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);

$result = curl_exec($ch);

if(curl_errno($ch))
{
    return 'Curl error: ' . curl_error($ch);
}
curl_close ($ch);
return $result;


                        
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