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Editorial Team
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Asked: 2026-06-15T14:51:41+00:00

Please don’t close this question before read my actual problem. I have seen many

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Please don’t close this question before read my actual problem. I have seen many related problems but I am still having.
Simply I want to send a json_encoded array by POST method using CURL in PHP. When I set content-type as application/json the data is not posted. I receive empty post array. When I remove content-type line the data is posted but not as json.
Here is my code

 $data = array('id' => $post['id'], 'action' => $post['action']);
 $post_data = http_build_query($data);
 curl_setopt($ch, CURLOPT_URL, $url);
 curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
 curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
 curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
 curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/json'));
 curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($post_data));

I this case I receive empty post. If I comment out the line curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/json')); I will receive the post data but not json encoded. I want json_encoded array. Will any one tell me what am I doing wrong?

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1 Answer

  1. Editorial Team

    You are encoding a query string to json not an array remove $post_data = http_build_query($data); and pass $data to json_encode.

     $data = array('id' => $post['id'], 'action' => $post['action']);
 curl_setopt($ch, CURLOPT_URL, $url);
 curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
 curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
 curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
 curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/json'));
 curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($data));

    ofcourse for this to work the service nedds to support json posts.

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