PHP cURL. Send a file

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May 28th, 2008, 06:40 AM

i_hope

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Join Date: Dec 2006

Posts: 21

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PHP cURL. Send a file

Hi,

I have been looking for information about this problem for the last two days and nothing has worked as I needed, that's why I am writing here now.

I am working on connecting interfaces using XML messages and I have been always using cURL for this purpose with no problem. I just kept sending my xml message as a string inside a POST variable and always got the response with no much deal.

Since last week I have been requested to join the interface of the company where I work to a new channel we will join to. After reading the documentation of this new interface, I thought everything would just work the same way but it is not like this.

This new channel is indeed expecting to receive a xml FILE (not just a POST variable) and I have tried to send it in as many ways as I could think about and never worked. In fact, the only way I have gotten a real response from this channel was while using a <form> and a <input type="file" name="xmlfile"> and sending this file using the submit function of this form.

The problem is that in my code there is no place for a form, while everything is running internally with php code, being launched each time an update is needed.

I have been told that one call in the command line like this would work:

Code:

curl -F "xmlfile=@/test_2_send.xml" "http://url_where_to_send.html" > response_we_got.state.zip

These are the different ways I have already tried:

PHP Code:


		
			
 $ch = curl_init();  

  $putData = tmpfile();

  fwrite($putData, $xml_request);

  fseek($putData, 0);

  

  $result_file = fopen('/response_we_got.state.zip', "w");



  /* Set cURL options. */

  curl_setopt($ch, CURLOPT_URL, 'http://url_where_to_send.html');

  curl_setopt($ch, CURLOPT_PUT, true);

  curl_setopt($ch, CURLOPT_INFILE, $putData);

  curl_setopt($ch, CURLOPT_INFILESIZE, strlen($xml_request));

  curl_setopt($ch, CURLOPT_FILE, $result_file);

  curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);



  $result = curl_exec($ch);  

  fclose($putData);        

  curl_close($ch);

This one I think would work just if I would be able to change the name of the INFILE element for "xmlfile"

PHP Code:


		
			
 $postfields = array(

                    "xmlfile"     => "@/test_2_send.xml"

                    ); 

                    

$pushUrl = curl_init('http://url_where_to_send.html');

curl_setopt($pushUrl, CURLOPT_VERBOSE, 1);

#curl_setopt($pushUrl, CURLOPT_FAILONERROR, 1);

curl_setopt($pushUrl, CURLOPT_FOLLOWLOCATION, 1);

curl_setopt($pushUrl, CURLOPT_RETURNTRANSFER, true);

curl_setopt($pushUrl, CURLOPT_POST, true);

curl_setopt($pushUrl, CURLOPT_FILE, $result_file);

curl_setopt($pushUrl, CURLOPT_POSTFILEDS, $postfields);

$output = curl_exec($pushUrl);



curl_close($pushUrl);

From both of the solutions I am getting as response an error saying:

Code:

xmlfile is null, empty or doesn't exist.

I would be really pleased if anyone would be able to help me.

Thanks a lot,
Álvaro

May 28th, 2008, 06:03 PM

TeraTask

Contributing User

Join Date: May 2008

Location: Reno, NV

Posts: 88

Time spent in forums: 12 h 23 m 7 sec
Reputation Power: 13

After reading w ww.p hp.net/ma nual/en/fu nction.cu rl-set opt.php , I was able to write this:

PHP Code:


		
			
<?php

$file_to_upload = array('file_contents'=>'@'.$file_name_with_full_path);

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL,$target_url);

curl_setopt($ch, CURLOPT_POST,1);

curl_setopt($ch, CURLOPT_POSTFIELDS, $file_to_upload);

$result=curl_exec ($ch);

curl_close ($ch);

echo $result;

?>

which worked just like in example 2 on the PHP site.

NOTE: On the URL above, I had to add spaces due to restrictions. I hope the admins don't get upset for me linking to the PHP site -- not like I'm trying to promote my own site.

May 29th, 2008, 08:42 AM

i_hope

Registered User

Join Date: Dec 2006

Posts: 21

Time spent in forums: 11 h 4 m 53 sec
Reputation Power: 0

Thank you very much for your answer. Surprisingly it has worked

And I say that I am surprised because the only thing that differences your code, from mine is:

YOURS

Code:

$file_to_upload = array('xmlfile'=>'@'.$file_name_with_full_path);

MINE

Code:

 $postfields = array("xmlfile"=> "@/full_path_2_send.xml");

So I assume it is important to write the @ symbol outside the string of the file's path...

Thanks again.