Posting data using CURL

[Pufas]

Hi there,

OK, there is what I'm trying to accomplish - I want to send POST instantly when the page is loaded without "Submit" button or anything like that.

Here how it looks using JavaScript:

<form name="postdata" action="http://www.mywebsite.com/post.php" method="post">
    <input name="data" type="text" value="1"/>
</form>
<script type="text/javascript" language="JavaScript">
document.postdata.submit();
</script>

 

Works fine with JavaScript, however i can't use it.

 

Here is reference for CURL: http://php.net/manual/en/book.curl.php

I found this curl_post function at php.net to simplify things up.

<?php

/**
* Send a POST requst using cURL
* @param string $url to request
* @param array $post values to send
* @param array $options for cURL
* @return string
*/
function curl_post($url, array $post = NULL, array $options = array())
{
    $defaults = array(
        CURLOPT_POST => 1,
        CURLOPT_HEADER => 0,
        CURLOPT_URL => $url,
        CURLOPT_FRESH_CONNECT => 1,
        CURLOPT_RETURNTRANSFER => 1,
        CURLOPT_FORBID_REUSE => 1,
        CURLOPT_TIMEOUT => 4,
        CURLOPT_POSTFIELDS => http_build_query($post)
    );

    $ch = curl_init();
    curl_setopt_array($ch, ($options + $defaults));
    if( ! $result = curl_exec($ch))
    {
        trigger_error(curl_error($ch));
    }
    curl_close($ch);
    return $result;
}
$test = curl_post("http://www.mywebsite.com/post.php", array("data" => "1"));
print($test);
?>

 

Looks like it uses GET instead POST (used sniffer to verify this).

I'm trying to send POST data to other host, if that matters.

Any help would be appreciated.

Thanks in advance.

 

[BlueSkyIS]

Looks like it uses GET instead POST (used sniffer to verify this).

 

why sniff to determine whether it posts or gets? check from post.php:

 

echo $_SERVER['REQUEST_METHOD'];

[Pufas]

I'm sorry, but I'm real noob at PHP.

I've tried what you said, BlueSkyIS

echo $_SERVER['REQUEST_METHOD'];

outputs 'GET' :/

Any ideas guys?

[BlueSkyIS]

using the same code, I get POST from my server.

[savagenoob]

Maybe set your CURL_SETOPTS manually and see what happens in the function?

 

like

 

curl_setopt($ch, CURLOPT_POST, 1);

 

I'm just throwing a fart in the wind...

[Pufas]

I've found another function that does work:

<?php
$data = array();
$data['data'] = '1';


$post_str = '';
foreach($data as $key=>$val) {
$post_str .= $key.'='.urlencode($val).'&';
}
$post_str = substr($post_str, 0, -1);

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'http://www.mywebsite.com/post.php' );

curl_setopt($ch, CURLOPT_POST, TRUE);
curl_setopt($ch, CURLOPT_POSTFIELDS, $post_str);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);

$result = curl_exec($ch);
curl_close($ch);
echo $result;

?>

 

But once I got i running I found out it's not quiet what i wanted if the first place.

Using CURL, POST is send by the server (where this, where php script that's above is being hosted) to 'http://www.mywebsite.com/post.php'. But I want POST to be send by the user who browses my other web page (let's call it www.myfirstwebpage.com).

So, using curl i get this:

www.myfirstwebpage.com ---(POST)---> www.mywebsite.com

But that's what i want (i get it using JavaScript):

User ---(POST)---> www.mywebsite.com

 

So put it simple i want to User to POST "data=1" to www.mywebsite.com automatically once the page is loaded.

 

Is it possible to do this via php?

[BlueSkyIS]

Is it possible to do this via php?

 

not easily, if at all. you want php to pretend it is the user, down to their browser and their IP address. and that's probably the biggest problem: spoofing the ip address of the user. i don't know if you could get that to work.

[Pufas]

Takes only one line using JavaScript. :/

<script type="text/javascript" language="JavaScript">
document.postdata.submit();
</script>

[BlueSkyIS]

The humongous difference is that Javascript is client-side while PHP is server-side. From my browser, I can turn off processing of Javascript with a click. I can't turn off processing of PHP from my browser.

[Pufas]

Thanks for all the info, marking this as solved.