Posting JSON using PHP Curl

Question

I'm trying to post some JSON data in PHP on my local server. I have the following code below but it's not working. Did i miss a vital thing?

 $url = 'http://localhost/mmcv/chart1.php'; //open connection $ch = curl_init(); curl_setopt($ch, CURLOPT_URL,$url); curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST"); curl_setopt($ch, CURLOPT_POSTFIELDS, $json); curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); curl_setopt($ch, CURLOPT_HTTPHEADERS,array('Content-Type: application/json')); $result = curl_exec($ch);

check whether curl is enabled or not using this code in your server if (!function_exists('curl_init')) { throw new Exception('PHP cURL extension is not present.'); } — Venkata Krishna
– Venkata Krishna, Commented Feb 14, 2013 at 14:17
@Venkat I'm not quite sure if i have. I used curl to fetch data from an API previously, does this still mean i would have to enable it on my end? — AndroidEnthusiast
– AndroidEnthusiast, Commented Feb 14, 2013 at 14:18
check once what is wrong in checking just do this if you are using Xampp go to htdocs folder create a test.php file paste the above code and run it.If you get any error post it here... — Venkata Krishna
– Venkata Krishna, Commented Feb 14, 2013 at 14:20
@Venkat it doesn't work i just get a server error : "HTTP Error 500 (Internal Server Error): An unexpected condition was encountered while the server was attempting to fulfill the request." — AndroidEnthusiast
– AndroidEnthusiast, Commented Feb 14, 2013 at 14:25

Eugene · Accepted Answer · 2013-02-14 14:44:16Z

Maybe your problem is in the receiving script. Try the following in "mmcv/chart1.php":

$rawInput = file_get_contents('php://input'); if(is_string($rawInput)) { if(!is_null($jsonInput = json_decode($rawInput, true))) $_POST = $jsonInput; }

thanks this definitely helped! it was a problem with a line in my code

rohitarora · Accepted Answer · 2013-02-14 14:15:28Z

curl_setopt($ch, CURLOPT_HTTPHEADERS,array('Content-Type: application/json'));

even if you are posting json you still have to send data in url encoded form so send it like

curl_setopt($ch, CURLOPT_HTTPHEADERS,array('Content-Type: application/x-www-form-urlencoded'));

and use

curl_setopt($ch, CURLOPT_POST, TRUE); curl_setopt($ch, CURLOPT_POSTFIELDS, $data);

instead of

curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST"); curl_setopt($ch, CURLOPT_POSTFIELDS, $json);

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