使用CURL发布到文件中…不接受变量

Question

Posting to a file using Curl

I'm trying to post to a file as soon as user enters a website assuming they have clicked from an ad.

Example url = http://myFabSite.com/?tr=213

This is what I'm trying but its not capturing the tr URL variable or the referrer:

if($_GET['tr']){
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, "http://myFabSite.com/actions/tracksAds.php");
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_POST, true);

    $data = array(
        'referrer' => $_SERVER['HTTP_REFERER'],
        'track_code' => $_GET['tr']
    );

    curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
    $output = curl_exec($ch);
    $info = curl_getinfo($ch);
    curl_close($ch);    
}

trackAds.php:

$mysqli = dbConnect();

$referrer = $mysqli->real_escape_string(urldecode(trim($_REQUEST['referrer'])));
$track_code = $mysqli->real_escape_string($_REQUEST['track_code']);

$query = "insert into ad_tracking ( tracking_code, referrer ) VALUES ( '$track_code', '$referrer' )"; 

$result = $mysqli->query($query);

Anything obvious?

UPDATE

This is from print_r($data);

Array
(
[referrer] => none
[track_code] => fb1
)

This is $query from trackAds.php

insert into ad_tracking ( tracking_code, referrer ) VALUES ( '', '' )

So, the array is not being passed, either at all or correctly, to trackAds.php

Answer 1

You're missing quotes in $_GET[tr] on the first line. Change it to $_GET['tr'] .

Also, use $_POST instead of $_REQUEST in trackAds.php . There's a great chance here that you are inadvertently getting a cookie value instead of a POST value, or simply have the wrong data in $_REQUEST . See this page in the documentation .

Answer 2

Actually found a different method which works ok, still no clue why the other doesn't.

This assumes PHP 5+

    $url = 'http://myFabSite.com/actions/tracksAds.php';
    $data = array('referrer' => $_SERVER['HTTP_REFERER'], 'track_code' => $_GET['tr']);

    // use key 'http' even if you send the request to https://...
    $options = array(
        'http' => array(
            'header'  => "Content-type: application/x-www-form-urlencoded\r\n",
            'method'  => 'POST',
            'content' => http_build_query($data),
        ),
    );
    $context  = stream_context_create($options);
    $result = file_get_contents($url, false, $context);