I have recently started working with the PHP curl() function and I am trying to convert my retrieved JSON object to an associated array. Can anybody point me in the right direction? Thanks!
<?php
$ch = curl_init("https://canvas.instructure.com/api/v1/courses?access_token=7~8SXvaXHjMFZFHAdU5yU0pxNmVwAj40sjW7jRHw1Bvzq09QTFWrJRFxTu4pHAqSZU");
curl_exec($ch);
curl_close($ch);
?>
The response:
[{"account_id":81259,"course_code":"CS50","default_view":"feed","id":870674,"name":"CS50","start_at":"2014-08-05T18:29:18Z","end_at":null,"public_syllabus":false,"storage_quota_mb":250,"apply_assignment_group_weights":false,"calendar":{"ics":"https://canvas.instructure.com/feeds/calendars/course_6QRRvAKDngrrXtTBhzCA5Oz46g3aLgfRt7PNH0NN.ics"},"enrollments":[{"type":"student","role":"StudentEnrollment","enrollment_state":"active"}],"hide_final_grades":false,"workflow_state":"available"}]
Use CURLOPT_RETURNTRANSFER to capture the result in a string, which is what you pass to json_encode. I think you're passing $ch to json_decode which is not what you want. (As the error message states, $ch is a resource and json_decode expects to be passed a string).
$ch = curl_init("https://canvas.instructure.com/api/v1/courses?access_token=7~8SXvaXHjMFZFHAdU5yU0pxNmVwAj40sjW7jRHw1Bvzq09QTFWrJRFxTu4pHAqSZU");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
// ...
$response = curl_exec($ch);
// $response will be false if the curl call failed
if($response) {
var_dump(json_decode($response, true));
}
See curl_setopt documentation for more information.
Related
I am trying to send a json to a url and get a response back. I am creating the json correctly I believe. However when I try to send it via php curl I do not get a response back. The url I am sending it to does populate a response though.
Here is the php:
<?php
$post = array("prompt" => $question, "functionName" => $func_name, "argumentNames" => $argumentNames, "testCases" => $testCases);
$transfer = json_encode($post);
$ctrl = curl_init();
curl_setopt($ctrl, CURLOPT_URL, "https://sample.com/question/add-question.php");
curl_setopt($ctrl, CURLOPT_POST, TRUE);
curl_setopt($ctrl, CURLOPT_POSTFIELDS, $transfer);
curl_setopt($ctrl, CURLOPT_RETURNTRANSFER, TRUE);
$response = curl_exec($ctrl);
curl_close($ctrl);
$response = json_decode($response);
echo $response;
?>
If I were to echo $transfer it would read:
{
"prompt":"Write a function named test that takes 2 argument(s) and adds them. The type of the arguments passed into the function and the value to be returned is int. The arguments for the function should be arg1 and arg2 depending on the number of arguments the function needs.",
"functionName":"test",
"argumentNames":["arg1","arg2"],
"testCases":{"input":["2","2"],
"output":"4"}
}
I would like to echo the response from the url I am sending the json too but instead, I get nothing back. However the url in the curl sequence (https://sample.com/question/add-question.php) does output a json on the webpage:
{"message":"An unknown internal error occured","success":false}
How am I not able to grab this and echo it in my original code snippet? Is it something wrong with my curl method?
Try setting the header to say you are sending JSON...
curl_setopt($ctrl, CURLOPT_HTTPHEADER, array(
'Content-Type: application/json',
'Content-Length: ' . strlen($transfer))
);
For the HTTPS, you may also need...
curl_setopt($ctrl, CURLOPT_SSL_VERIFYPEER, false);
You also may try...
curl_setopt($ctrl, CURLOPT_FOLLOWLOCATION, 1);
Basically I'm trying to GET an API that gives me a JSON array. It should only be one integer. Whenever I try to though I receive the error:
Notice: Trying to get property of non-object in /public_html/call.php on line 16
Here's call.php:
<?php
require 'connection.php';
$players2weeks = '(removed api)';
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $players2weeks);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
$response = curl_exec($ch);
curl_close($ch);
$response = json_decode($response);
print_r($response);
echo $response->players_2weeks;
?>
I have the print_r for troubleshooting but I'm getting nothing. My apologies for a noob question by the way, I have no experience with JSON.
Appreciate the help!
I think you can use this Code :
<?php
require 'connection.php';
$players2weeks = '(removed api)';
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $players2weeks);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
$response = curl_exec($ch);
curl_close($ch);
$responses = json_decode($response);
print_r($responses);
echo $responses['players_2weeks'];
?>
You should change the format of echo when the decoded JSON objects. and the Variable same means some clashes in the print so I changed the $response variable also...
You have to make array to json string by using the json_encode() function on the api.
For example: xxx.php (api)
$result = array(); //return array
echo json_encode($result);
Then you can get result by json array on the api caller.
var_dump(json_decode($result)); // Object
var_dump(json_decode($result, true)); // Associative array
I wanted to try to get data from a JSON string which is loaded from another page. I currently have used Curl to get the data from the webpage but I can't acces the data in it.
I've already tried:
var_dump(json_decode($result->version, true));
var_dump(json_decode($result[3][0]["date"], true));
But this does't seem to work as it always returns NULL
$url="https://roosters.deltion.nl/api/roster?group=AO2B&start=20160125&end=20160201";
// Initiate curl
$ch = curl_init();
// Disable SSL verification
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
// Will return the response, if false it print the response
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
// Set the url
curl_setopt($ch, CURLOPT_URL,$url);
// Execute
$result=curl_exec($ch);
// Closing
curl_close($ch);
// Will dump a beauty json :3
var_dump(json_decode($result, true));
First decode the JSON, then get the properties you want. Like this:
$yourObject = json_decode($result);
var_dump($youObject->version);
this is working for me.
<?php
$url = "https://roosters.deltion.nl/api/roster?group=AO2B&start=20160125&end=20160201";
// Initiate curl
$ch = curl_init();
// Disable SSL verification
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
// Will return the response, if false it print the response
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
// Set the url
curl_setopt($ch, CURLOPT_URL, $url);
// Execute
$result = curl_exec($ch);
// Closing
curl_close($ch);
// Will dump a beauty json :3
$data = json_decode($result);
//echo $data->data[0]['date'];
echo "<pre>";
print_r($data->data[0]->date);
}
?>
if you want to get date of all index then try this in loop.
Firstly if your using GET there is no need to use CURL,
$result = file_get_contents(https://roosters.deltion.nl/api/roster?group=AO2B&start=20160125&end=20160201);
Will work just as well without any of the overhead. I suspect that your CURL isn't returning the page content so using file_get_contents() will fix it.
I'm trying to write a request with curl. I want to get the distance between two points. Therefore I'm getting the data of those points from my db to build the string. The final string looks like this when I echo it.
http://maps.googleapis.com/maps/api/distancematrix/json?origins=40215+Düsseldorf+Königsallee 59&destinations=40215+Düsseldorf&sensor=false
I also tried it with https instead of http but the result was the same.
As you can see, it returns a perfectly fine JSON-Response, but when I do this afterwards, I always get an error.
public function request($signedUrl) {
$ch = curl_init($signedUrl);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HEADER, 0);
$data = curl_exec($ch);
curl_close($ch);
$this->response = json_decode($data);
}
The $signedUrl is the requestUrl.
The error from Google I get, when I var_dump($data) is
400. That’s an error.
Your client has issued a malformed or illegal request. That’s all we know. "
When I var_dump the response, it just gives me null.
What could be the problem here and how could I fix it? I also tried to read it in with file_get_contents but without success
Works [Tested] . You got a bad request since the URL was not encoded.
<?php
$urlx='http://maps.googleapis.com/maps/api/distancematrix/json?origins=40215+D%C3%BCsseldor%20%E2%80%8Bf+K%C3%B6nigsallee59&destinations=40215+D%C3%BCsseldorf&sensor=false';
$ch = curl_init($urlx);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HEADER, 0);
$data = curl_exec($ch);
curl_close($ch);
var_dump(($data));
Hi I'm a little new at CURL, but I'm trying to request some json data and then parse the results. I am having success with retrieving the data, but I can't handle the response. Here's the code
function bitBucketCurl($url)
{
global $bitPassword;
global $bitUsername;
$ch = curl_init();
// set URL and other appropriate options
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_USERPWD, "$bitUsername:$bitPassword");
curl_setopt($ch, CURLOPT_HEADER, 0);
// grab URL and pass it to the browser
$commitinfo = curl_exec($ch);
// close cURL resource, and free up system resources
curl_close($ch);
return $commitinfo;
}
$json = bitBucketCurl($url);
echo $json; // This seems to work in that, when I load the page, I can see the json data
//turn json data into an array - this is what does not seem to be working
$obj_a = json_decode($json, true);
print_r ($obj_a); //the result is simply a 1 rather than the array I would expect
The basic problem is the json data shows up when I echo $json but when I try to turn that data into an array it doesn't work. When I print the array, I just get a '1'.
I got the required result by adding the following line:
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);