cURL Sending File as Post

Posted on 16th Feb 2014 07:03 pm by admin

This is a bit complicated, I'm just hoping someone else has run into this and knows how to do it a different way or make it work.

When sending a file as part of form information included in a cURL request, it appears you can not include a query string in the file name. Take a look at my example to see what I'm talking about.

Code: //This creates an example image with some text from $_GET['img'] you can try calling this directly to see what the output looks like
if(isset($_GET['img'])){
$im = imagecreatetruecolor(120, 20);
$text_color = imagecolorallocate($im, 255, 255, 255);
imagestring($im, 3, 3, 3, $_GET['img'], $text_color);
header('Content-type: image/jpeg');
imagejpeg($im);
imagedestroy($im);
exit;
}

//Show what was sent to the $_POST and $_FILES variables
if(isset($_POST['showpost'])){
echo '<pre>';
print_r($_POST);
print_r($_FILES);
exit;
}

//Here's the part where we get in trouble...
//This works
//$imgURL = '@'.$_SERVER['SCRIPT_FILENAME'];

//This doesn't work
$imgURL = '@'.$_SERVER['SCRIPT_FILENAME'].'?img=true';

$data = array('showpost' => 'true', 'file' => $imgURL);

//Now do the cURL request to show information about the file that was sent
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'http://'.$_SERVER["SERVER_NAME"].$_SERVER["REQUEST_URI"]);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
curl_exec($ch);
if(curl_errno($ch))
echo curl_error($ch);
curl_close($ch);
When using the section that says "This doesn't work" you'll get the cURL error "failed creating formpost data".

Any suggestions?

Your Answer:

Login to answer

Other forums

Async WSAConnect failed on XP with error code = 2 ("File not found")
Hi all,

I have very strange bug, please help me if you can.

It is reproduced o

Giving the below syntax error
Dear Experts,

I have used 2 buttons in gui status as display and cjhange.When the user wi

Code error with Index.php
Error: Parse error: syntax error, unexpected T_STRING, expecting ',' or ';' in /home/runevid/public_

Echoing ASCII code
I have a php page that splits a string into chars and then echoes the ASCII code for each char. I'm

Certain files upload, while others do not
I want to read the data from an uploaded file. Not sure why, but it only uploads for certain files.

SWF image using php?
Hello once again.

My latest en devour requires me to produce an image of a static .swf that i

Help pulling in 'id' with "read more" link
I'm trying to create snippets of my articles in the cms I'm creating, and then have them redirect to

Month String to Numeric?
Hi guys,

Given a month as a string, is there a simple way to find the numeric representation

Warning message
I've put a website that I was doing live and I'm getting this warning message when I try to add a ne

Load Animated Image while cache is serve
I have a page that loads up using cache and took about 1 to 2 minutes before it loads to the page. <