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PHP + curl, HTTP POST sample code?
POST data to URL php
How to issue HTTP POST request?
I've created a script that intercepts a regular post, and based on the username does one thing or another.
In one of the conditional branches, I want to move the user along and POST what he wrote down in the login form to another PHP script.
How can I easily make a POST request to a URL?
Is there something like:
$data = array("username" => "admin", "password" => "hunter2");
http_post("foo.com", "POST", $data);
Any suggestions?
Like this:
// Create map with request parameters
$params = array ('surname' => 'Filip', 'lastname' => 'Czaja');
// Build Http query using params
$query = http_build_query ($params);
// Create Http context details
$contextData = array (
'method' => 'POST',
'header' => "Connection: close\r\n".
"Content-Length: ".strlen($query)."\r\n",
'content'=> $query );
// Create context resource for our request
$context = stream_context_create (array ( 'http' => $contextData ));
// Read page rendered as result of your POST request
$result = file_get_contents (
'http://www.sample-post-page.com', // page url
false,
$context);
// Server response is now stored in $result variable so you can process it
source:
http://fczaja.blogspot.ch/2011/07/php-how-to-send-post-request-with.html
That's what the curl functions exist for. See, for example: http://davidwalsh.name/curl-post
Related
What is the most effective way of programmatically filling out an HTML form on a website, using data from a dataset (either CSV, JSON, or similar..) and then retrieving the results of that submitted form into another dataset? I would like to be able to do this multiple times, populating the form with different parameters each time, always retrieving those parameters from my input dataset.
I was reading about Selenium and HTMLUnit, which seem to do similar things. But they require installing dependencies and learning how to use them. Would it be overkill? Is there an easier way to do this by maybe writing my own script?
I tried writing a php curl script, but this one doesn't generate the headers or cookies that the request requires, so I'm not able to retrieve anything.
<?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;
}
?>
I'm not sure if that's the right approach.
Any tips/resources would be appreciated.
You can write this script in Selenium - it's just a browser driver, it will fill the form from the client side. If the page isn't very complicated, you can use library requests in Python and directly send POST data to the final page. Requests is a faster lib, and to write a script sending POST data you will need 5 mins of learning.
Trying to help out someone who is trying to access and API using PHP. My code using ColdFusion works fine posting to the API, but we can't get the PHP to work. In CF the code uses urlparams to send the data:
<cfhttp url="https://example.com/_api/proxyApi.cfc" method="post" result="httpResult" charset="UTF-8">
<cfhttpparam type="url" name="method" value="apiauth"/>
<cfhttpparam type="url" name="argumentCollection" value="#jsData#"/>
</cfhttp>
A dump of the resulting call from the API shows the variables in the URL like this:
method = apiauth is the main authorization function, and then the json string in argumentCollection is passed to the correction function in the API by apiauth.
From PHP his curl is posting as form data, not URL and the API complains that the required information is missing because it's in the wrong scope. I've been trying to figure out how to make curl use URL scope instead:
$curl = curl_init();
curl_setopt_array($curl, array(
CURLOPT_RETURNTRANSFER => true,
CURLOPT_URL => $target_url,
CURLOPT_POST => 1,
CURLOPT_FOLLOWLOCATION => true,
CURLOPT_MAXREDIRS => 2,
CURLOPT_AUTOREFERER => true,
CURLOPT_POSTFIELDS => array(
'method' => 'apiauth',
'argumentCollection' => $json
)
));
The same dump from the API shows the same data, but in the wrong scope:
It seems like if we can get the data in the right scope we'll make progress, but my PHP knowledge is dangerously limited.
You are sending an empty POST in your CF example.
<cfhttpparam type="url" is processed as a query string parameter, as in:
https://example.com/_api/proxyApi.cfc?method=apiauth&argumentCollection=...
Thus your dump of the URL scope (the key-value-paired query string) shows the data.
To put those parameters into your POST body, you would use:
<cfhttpparam type="formfield"
And then you FORM scope would show the data.
Your PHP cURL does the latter: it adds your parameters to the POST body.
If you want the cURL to work as your example CF code, do this instead:
// add the parameters to the URL's query string
// start with & instead of ?, if the URL already contains a query string, see comment below snippet
$target_url .= '?'.'method=apiauth'.'&'.'argumentCollection='.urlencode($json);
$curl = curl_init();
curl_setopt_array($curl, array(
CURLOPT_RETURNTRANSFER => true,
CURLOPT_URL => $target_url,
CURLOPT_FOLLOWLOCATION => true,
CURLOPT_MAXREDIRS => 2,
CURLOPT_AUTOREFERER => true
));
no query string in $target_url:
$target_url = 'https://example.com/_api/proxyApi.cfc';
$target_url .= '?'.'method=apiauth'.'&'.'argumentCollection='.urlencode($json);
query string in $target_url:
$target_url = 'https://example.com/_api/proxyApi.cfc?p=';
$target_url .= '&'.'method=apiauth'.'&'.'argumentCollection='.urlencode($json);
On a side note: You probably don't want to send JSON via query string as the query string has a limit of about 2000 chars (depends on browser and webserver). If your JSON is complex, your query string will be truncated and mess everything up. Use the POST body for this instead.
I am trying to get to get clicks and spend data for ad campaigns.
I am currently getting all ad campaign ID's with a curl request which returns about 260 ID's.
I want to make a batch request and get the clicks, spend, start and end dates for each ID.
I have found the PHP SDK FacebookRequest() function very confusing so have been trying to make cURL requests.
Would really appreciate some help because I am just stumped at the moment. Is it best to use to FacebookRequest() function or can I continue using the cURL requests?
Not sure if I am on the right track but essentially what I have at the moment is all the campaign ID's which I group with a method, relative_url and body and then pass to a requestHandler function. The code is as follows:
$ad_account_ids = <ad_account_id>;
$ad_campaign_ids = FbAdCampaign::all()->lists('ad_campaign_id')->toArray();
foreach ($ad_campaign_ids as $key => $value) {
$ad_campaign_ids[$key] = array(
"method" => "GET",
"relative_url" => "v2.4/act_".$ad_account_ids."/adgroups",
"body" => "campaign_id=".$value."&redownload=1&bid_type=CPC&bid_info={\"clicks\":150}&creative={\"creative_id\":\"{result=create_creative:$.id}\"}&targeting={\"countries\":[\"US\"]}&name=test1"
);
$fields[] = array(
'access_token' => $access_token,
'batch' => $ad_campaign_ids[$key]
);
// $url = 'https://graph.facebook.com/v2.4/act_'.$ad_campaign_ids.'/adcampaign_groups?access_token='.$access_token;
$url = 'https://graph.facebook.com/';
$data = RequestHandler::curlRequest($url);
Ok got it.
Had to prepend the /GET data to the end of the URL to pass to the request handler.
as follows:
$url = 'https://graph.facebook.com/v2.3/act_'.$ad_account_ids.'/adcampaign_groups?access_token='.$access_token;
I have a project where I need to do the following: retrieve some data from a form, fill the database, create a response for the user and post the data to a third party. To give an example, it's like booking a ticket to a concert.The ajax call: You buy the ticket, you receive a response (whether the purchase was successful), a php script sends data to the database, and someone may be announced that a new ticket was bought. Now, I need to pass data to that "someone". Which is what I don't know how to do.
Or, like when someone posts a comment to my question on stackoverflow, I get a notification.
In my particular case, the user creates an event, receives a response and I will need to have certain parameters posted by the user on a calendar. It is important that I could hardly integrate the calendar with the script retrieving the data. I would rather need to "forward" the data to the calendar- quite like pushing notifications.
Can anyone please give me a clue what should I use, or what should I need in order to do the above?
The process will go like this:
AJAX
user----> php script->database
|_ calendar
So if i get you right, you could post your data to the calendar via curl:
$url = "http://www.your-url-to-the-calendar.com";
$postData = array(
"prop1" => "value1",
"prop2" => "value2",
"prop3" => "value3"
);
//urlify the data for the post
$data_string = "";
foreach ($postData as $key => $value)
$data_string .= urlencode($key) . '=' . urlencode($value) . '&';
$data_string = rtrim($data_string, '&');
//will output --> prop1=value1&prop2=value2=prop3=value3
$ch = curl_init();
curl_setopt_array($ch, array(
CURLOPT_URL => $url,
CURLOPT_HEADER => false,
CURLOPT_RETURNTRANSFER => true,
CURLOPT_FOLLOWLOCATION => false,
CURLOPT_POST => count($postData),
CURLOPT_POSTFIELDS => $data_string
));
$result = curl_exec($ch);
If your third party calendar does not require authentication than this would be the best way to post it, if you can not write to the database yourself.
When it requires authentication you would have to first login via curl (send credentials via curl-post, receive cookies, send cookies with your data)
Hope this helps.
I have the Simple HTML DOM Parser for PHP, and I am using the following markup:
$html = file_get_html('http://www.google.com');
However how do I send post variables (like a cURL) to that page and get the response? For example
$html = file_get_html('http://www.google.com', array("Item"=>"Value", "Item2"=>"Value2"));
The documentation doesn't mention it as far as I can see, but after taking a look in the source code I noticed the function you're using accepts a stream context as its third argument. You can create a post request with this PHP feature like this:
$request = array(
'http' => array(
'method' => 'POST',
'content' => http_build_query(array(
'Item' => 'Value',
'Item2' => 'Value2'
)),
)
);
$context = stream_context_create($request);
$html = file_get_html('http://www.google.com', false, $context);
If you don't like contexts or would prefer a different method (like the cURL extension) you could also just fetch the page content using that, then feed it to the parser with str_get_html() or $parser->load(); the class itself does pretty much the same internally with the method you're using right now.