php cURL post send file not working

Question

I'm trying to send a .txt file via php cURL post but no success.

My cURL code looks like this:

$filedata = curl_file_create('../path/to/file.txt', 'text/plain', 'file.txt'); $array = array( 'action' => 1, 'file' => $filedata, 'sec_secure' => $sec_secure, ) $ch = curl_init(); curl_setopt($ch, CURLOPT_URL, 'https://domain_name.com/url/to/script.php'); curl_setopt($ch, CURLOPT_HEADER, false); curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); curl_setopt($ch, CURLOPT_POST, true); curl_setopt($ch, CURLOPT_POSTFIELDS, $array); curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); curl_setopt($ch, CURLOPT_SAFE_UPLOAD, true); $result = curl_exec($ch); curl_close($ch); $response = 0; if($sec_secure == $result){ $response = 1; }

And the receiving script.php:

if(isset($_FILES['file'])){ $contents = file_get_contents($_FILES['file']['tmp_name']); $response = $_POST['sec_secure']; } else{ $response = ''; } echo $response;

The problem is that is always giving me $response = 0.

Does anyone knows why is this happening and how to make it work as it would?

EDIT:

I missed this following line after $array:

$array = http_build_query($array);

Maybe that's causing the issue?

also enctype=”multipart/form-data” needs to be set for file transfers. — RamC
– RamC, Commented Jan 16, 2018 at 8:45
@RamC could you tell me how to set the enctype? And do I need to set CURLOPT_HEADER to true? — molinet
– molinet, Commented Jan 16, 2018 at 8:48
set CURLOPT_HEADER to array("Content-Type:multipart/form-data"); and check — RamC
– RamC, Commented Jan 16, 2018 at 8:52
@RamC on CURLOPT_HEADER or CURLOPT_HTTPHEADER and CURLOPT_HEADER to true? And thanks for your answer! — molinet
– molinet, Commented Jan 16, 2018 at 8:54

RamC · Accepted Answer · 2018-01-16 09:10:19Z

1

You have to set the enctype=”multipart/form-data” for file transfers.

set CURLOPT_HEADER to true

set CURLOPT_HTTPHEADER to array("Content-Type:multipart/form-data");

edited Jan 16, 2018 at 9:10

answered Jan 16, 2018 at 8:56

RamC

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10 Comments

Lawrence Cherone Over a year ago

The following works perfectly without headers: 3v4l.org/E0cHv, try it... it will send the file then print_r the file contents. The OP is essentially doing the same but with 1 instead of the file contents so I dont think its headers.

molinet Over a year ago

Thanks! I'll try it later when I get home

molinet Over a year ago

I just tried your code and still returns value 0. I don't know how to fix this...

molinet Over a year ago

The code is what I have written earlier. I'm starting to think that maybe I don't have to retrieve it as $_FILES but as $_POST. And also I'm not getting any errors on errorlog [both]... And again, thanks for helping me out :)

molinet Over a year ago

I've just edit my code cause I missed one line in the first place but don't know if that's relevant...

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ChrisF · Accepted Answer · 2018-01-24 09:55:25Z

Add Header in curl.

$array = array( 'action' => 1, 'file' => $filedata, 'sec_secure' => $sec_secure, ) $array = json_encode($array); $headers = array( 'Content-Type: application/json', 'Content-Length: ' . strlen($array) ); $curl = curl_init($url); curl_setopt($curl, CURLOPT_POST, 1); curl_setopt($curl, CURLOPT_POSTFIELDS, $array); curl_setopt($curl, CURLOPT_HTTPHEADER, $headers); curl_setopt($curl, CURLOPT_RETURNTRANSFER, TRUE); curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false); curl_setopt($ch, CURLOPT_SAFE_UPLOAD, true); $result = curl_exec($ch); curl_close($ch); $response = 0; if($sec_secure == $result){ $response = 1; }

change the code like this.

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