I have pretty simple PHP code to send post data using curl and write it to a file. But all I get is an empty array. I am sending data from one domain to another and both domains are run by me. I tried using examples of similar posts at StackOverflow but always get an empty array.
curl function :
function run()
{
$serverData['php'] = PHP_VERSION;
$serverData['url'] = $_SERVER['SERVER_NAME'];
$ch = curl_init('https://test.com/tracking/');
curl_setopt ($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $serverData);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, TRUE);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_exec($ch);
curl_close($ch);
}
Receive post data:
$response = $_POST['url']." ".$_POST['php'];
$fp = fopen('vardump.txt', 'w');
fwrite($fp, serialize($response));
fclose($fp);
var_dump($response);
Related
I am using the following code to send a CURL request to send a SMS. But the SMS is being sent twice.
$message = urlencode($message);
$smsurl = "http://$url/sendmessage.php?user=matkaon&password=$password&mobile=$mobile&message=$message&sender=$sender&type=3";
$ch = curl_init($smsurl);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$sentsms = curl_exec($ch);
curl_close($ch);
I tried commenting some of the lines which solved the issue but gives an output as below:
What is the proper method to send a CURL request only once?
Try this:
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $smsurl);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_exec($ch);
Don't pass the URL as argument on the init function.
I don't know why the function is being called twice, but I never pass the URL as argument and always work great this way.
You'd usually use curl_init() with no parameters, then pass the URL into curl_exec.
Modified example 1 from curl_exec docs:
<?php
// create a new cURL resource
$ch = curl_init();
// set URL and other appropriate options
curl_setopt($ch, CURLOPT_URL, $smsurl);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
// grab URL and pass it to the browser
curl_exec($ch);
// close cURL resource, and free up system resources
curl_close($ch);
?>
I want to check all of the requested urls and if the url contains "video" folder in it, redirect it to an API file. then the API gives me a json files which only contains "respond:true" or "respond:false". In case of having respond:true in the json file the url must be showed and if the json file contains respond:false a predefined simple 403 page must be showed to the user.
I know that the fist part is possible with a simple code in .htaccess file like this:
RewriteRule ^your/special/folder/ /specified/url [R,L]
But I don't know how to do the second part. I mean how to get the result of API, which is in form of a json file and check it.
You can use CURL..
GET REQUEST
$url = 'http://example.com/api/products';
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_HTTPGET, true);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$response_json = curl_exec($ch);
curl_close($ch);
$response=json_decode($response_json, true);
POST REQUEST
$postdata = array(
'name' => 'Arfan'
);
$url = "https://example.com/api/user/create";
$curl = curl_init($url);
curl_setopt($curl, CURLOPT_HEADER, false);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_POST, true);
curl_setopt($curl, CURLOPT_POSTFIELDS, $postdata);
$json_response = curl_exec($curl);
$status = curl_getinfo($curl, CURLINFO_HTTP_CODE);
curl_close($curl);
You can also use file_get_content to get API data.
$json = file_get_contents("$url")
You can execute second part (Calling API and response): Call API using curl and process based on its response:
$ch = curl_init();
curl_setopt($ch, CURLOPT_POST, false);
curl_setopt($ch, CURLOPT_URL, "api_url_here");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$api_response_json = curl_exec($ch);
curl_close($ch);
//convert json to PHP array for further process
$api_response_arr = json_decode($api_response_json);
if($api_response_arr['respond'] == true ){
//code for success here
}else{
// code for false here
}
Please note: Json response from API is depend on API Response, If API is giving response in json format ( can be based on params also ).
I've been reading this helpful post:
http://techslides.com/hacking-the-google-trends-api
It shows how you can use cURL in command line/terminal to request data from google trends, for example;
curl --data "ajax=1&cid=actors&geo=US&date=201310" http://www.google.com/trends/topcharts/trendingchart
Gives you a big block of what I think is JSON. Below is an example of what I am doing to use cURL within my PHP to get data like this- however I cannot find anything that would get the data from the above cURL command to work in PHP like below.
<?php
//initialize session
$url = "http://www.google.com/trends/hottrends/atom/feed?pn=p1";
$ch = curl_init();
//set options
curl_setopt($ch, CURLOPT_URL, $url);
//execute session
$data = curl_exec($ch);
echo $data;
//close session
curl_close($ch);
?>
How do I go about getting the data from above?
You can do the same with the PHP cURL extension. You just need to set the options through curl_setopt, so you would do something like this
$url = "http://www.google.com/trends/topcharts/trendingchart";
$fields = "ajax=1&cid=actors&geo=US&date=201310";
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $fields);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$data = curl_exec($ch);
curl_close($ch);
Now you have the response of the website in $data and you can do whatever you want with it.
You can find the PHP cURL documentation on http://php.net/curl
Try this
// Complete url with paramters
$url = "http://www.google.com/trends/topcharts/trendingchart?ajax=1&cid=actors&geo=US&date=201310";
// Init session
$ch = curl_init();
// Set options
curl_setopt($ch, CURLOPT_URL, $url);
// Set option to return the result instead of echoing it
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
// Execute session
$data = curl_exec($ch);
// Close session
curl_close($ch);
// Dump json decoded result
var_dump(json_decode($data, true));
I am using the following code to get information about a repo using the Github API.
I am using cURL, but I'm not sure how to just get the name of the repository. So, how can I get just one string from the response and echo that without echoing the complete response? I tried doing $data['name'] but that didn't work.
code:
$ch = curl_init();
curl_setopt($ch,CURLOPT_USERAGENT,'Content-type: application/json');
curl_setopt($ch, CURLOPT_URL, 'https://api.github.com/repos/ruby/ruby');
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$data = curl_exec($ch);
curl_close($ch);
echo $data;
This request returns JSON, so just use json_decode.
$jsonStr = curl_exec($ch);
curl_close($ch);
$json = json_decode($jsonStr, true);
var_dump($json['name']);
var_dump($json['full_name']);
It should be trivial from here to get the elements you're interested in.
I have a Affiliate URL Like http://track.abc.com/?affid=1234
open this link will go to http://www.abc.com
now i want to execute the http://track.abc.com/?affid=1234 Using CURL
and now how i can Get http://www.abc.com
with Curl ?
If you want cURL to follow redirect headers from the responses it receives, you need to set that option with:
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, TRUE);
You may also want to limit the number of redirects it follows using:
curl_setopt($ch, CURLOPT_MAXREDIRS, 3);
So you'd using something similar to this:
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, "http://track.abc.com/?affid=1234");
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, TRUE);
curl_setopt($ch, CURLOPT_MAXREDIRS, 3);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
$data = curl_exec($ch);
Edit: Question wasn't exactly clear but from the comment below, if you want to get the redirect location, you need to get the headers from cURL and parse them for the Location header:
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, "http://track.abc.com/?affid=1234");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
curl_setopt($ch, CURLOPT_HEADER, true);
$data = curl_exec($ch);
This will give you the headers returned by the server in $data, simply parse through them to get the location header and you'll get your result. This question shows you how to do that.
I wrote a function that will extract any header from a cURL header response.
function getHeader($headerString, $key) {
preg_match('#\s\b' . $key . '\b:\s.*\s#', $headerString, $header);
return substr($header[0], strlen($key) + 3, -2);
}
In this case, you're looking for the value of the header Location. I tested the function by retrieving headers from a TinyURL, that redirects to http://google.se, using cURL.
$url = "http://tinyurl.com/dtrkv";
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_HEADER, true);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$data = curl_exec($ch);
curl_close($ch);
$location = getHeader($data, 'Location');
var_dump($location);
Output from the var_dump.
string(16) "http://google.se"