PHP cURL, POST JSON
I need to POST the following JSON code, but for some reason it is not working. Below is the code that I have.
$fieldString = "395609399";
//the curl request processor
function processCurlJsonrequest($URL, $fieldString) { //Initiate cURL request and send back the result
$ch = curl_init();
curl_setopt($ch, CURLOPT_HTTPHEADERS, array('Content-Type: application/json'));
curl_setopt($ch, CURLOPT_URL, $URL);
curl_setopt($ch, CURLOPT_USERAGENT, $this->_agent);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
curl_setopt($ch, CURLOPT_COOKIEFILE, $this->_cookie_file_path);
curl_setopt($ch, CURLOPT_COOKIEJAR, $this->_cookie_file_path);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, TRUE);
curl_setopt($ch, CURLOPT_VERBOSE, TRUE);
if ($fieldCount) { // in case of post fields present then pass it on
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode("{categoryId: $fieldString}"));
curl_setopt($ch, CURLOPT_POST, 1);
}
$resulta = curl_exec($ch);
if (curl_errno($ch)) {
print curl_error($ch);
} else {
curl_close($ch);
}
return $resulta;
}
Here is the function which calls the cURL request:
function get_cat($categoryId, $URL) {
$fields = array(
"categoryId" => $categoryId
);
$fields_string = $fields;
return $this->processCurlJsonrequest($URL, $fields_string);
}
Solution 1:
The bit that is the problem is:
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode("{categoryId: $fieldString}"));
CURLOPT_POSTFIELDS will accept either an array of parameters, or a URL-encoded string of parameters:
curl_setopt($ch, CURLOPT_POSTFIELDS, array('json'=>json_encode($stuff)));
curl_setopt($ch, CURLOPT_POSTFIELDS, 'json='.urlencode(json_encode($stuff)));
Where json
will be the name of the POST field (i.e.: will result in $_POST['json']
being accessible).
Solution 2:
Send your text without JSON encoding, and add this header code:
curl_setopt($ch, CURLOPT_HTTPHEADER, array("Content-Type: application/json; charset=utf-8","Accept:application/json, text/javascript, */*; q=0.01"));
Solution 3:
With the initial example, working code should be like this:
//the curl request processor
function processCurlJsonrequest($URL, $fieldString) { //Initiate cURL request and send back the result
$ch = curl_init();
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/json'));
curl_setopt($ch, CURLOPT_URL, $URL);
curl_setopt($ch, CURLOPT_USERAGENT, $this->_agent);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
curl_setopt($ch, CURLOPT_COOKIEFILE, $this->_cookie_file_path);
curl_setopt($ch, CURLOPT_COOKIEJAR, $this->_cookie_file_path);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, TRUE);
curl_setopt($ch, CURLOPT_VERBOSE, TRUE);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode(array("myJsonData" => "test")));
curl_setopt($ch, CURLOPT_POST, 1);
$resulta = curl_exec($ch);
if (curl_errno($ch)) {
print curl_error($ch);
} else {
curl_close($ch);
}
return $resulta;
}