Apply value into cURL on PHP - php

Question

I have a question about curl.
Here is the value which will be changed by the user input.
$uid = "xxxxx" //Get from system
$token = "xxxxx" //Get from system
$title = "Testing Message"; //user input
$body = "Message"; //user input
$url_on_click = "https://www.xxxxx.com"; //user input
I want to apply the value into the function but it getting error:
$curl = curl_init();
curl_setopt_array($curl, array(
CURLOPT_URL => 'https://bn.xxxxxx.com/wpn/wpn_send',
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => '',
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 0,
CURLOPT_FOLLOWLOCATION => true,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => 'POST',
CURLOPT_POSTFIELDS =>'{
"uid" :' . $record_uid . ',
"payload": ' . $payload . '
}',
CURLOPT_HTTPHEADER => array(
'token: ' . $record_token . ',
Content-Type: application/json'
),
));
$response = curl_exec($curl);
curl_close($curl);
return $response;
If I change all the value to string. It's work. The follow code like :
$curl = curl_init();
curl_setopt_array($curl, array(
CURLOPT_URL => 'https://bn.xxxxxx.com/wpn/wpn_send',
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => '',
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 0,
CURLOPT_FOLLOWLOCATION => true,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => 'POST',
CURLOPT_POSTFIELDS =>'{"uid" :"xxxxxx",
"payload": {
"title": "Testing Message",
"body": "1234",
"icon":"https://xxxxx.net/xxxxx.png",
"urlOnClick":"xxxxx.com"
}}',
CURLOPT_HTTPHEADER => array(
'token: xxxxxx',
'Content-Type: application/json'
),
));
$response = curl_exec($curl);
curl_close($curl);
echo $response;
May I know which part I did wrong? That issue really pull my hair out.
Thank you =]

Answer 1

Try this, post fields depend on your CURLOPT_HTTPHEADER, according to your header you need to convert it in JSON otherwise, the array type will work
$postFields = array(
'uid' => "xxxx",
'token' => "xxxx",
'title' => "xxxx",
'body' => "xxxx",
'url_on_click' => "xxxx"
);
//curl init lines
//-------
//-------
CURLOPT_POSTFIELDS => json_encode($postFields),