Curl iteratively pass multiple payloads from json or array - php

Question

How do I pass multidimensional associative array or a json as a payload to cURL request. I have been trying to wrap my head around this for sometime now without any success.
Here is what I have done so far. I make a curl request and pass a json to the CURLOPT_POSTFIELDS fields. This works alright. The problem is I want the code to run for multiple users which are in a json string saved in a variable
<?php
$curl = curl_init();
curl_setopt_array($curl, array(
CURLOPT_URL => 'https://test.url/tokens',
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 =>'{
"customerName": "orland",
"mno": "Network",
"amount": "1",
"msisdn": "447911123456",
"description": "Awaiting",
"reference": "0fgdufgdfgdfs"
}',
CURLOPT_HTTPHEADER => array(
'Content-Type: application/json',
),
));
$response = curl_exec($curl);
curl_close($curl);
echo $response;
The above code works fine.
But the payload for CURLOPT_POSTFIELDS is not fixed.
So this is what I tried doing, I encoded the json string and tried passing it to a for loop. I am sure the approach isn't bad, but I am not getting the syntax quite right. Here is my code.
<?php
$recip = '[{
"customerName": "Sorland",
"mno": "Network",
"amount": "1",
"msisdn": "447911123346",
"description": "Awaiting",
"reference": "0fgdufgdfgdfs"
},
{
"customerName": "Corland",
"mno": "MTN",
"amount": 1,
"msisdn": "447911123678",
"description": "Awaiting",
"reference": "0jsbfbsubfhbj"
},
{
"customerName": "orland",
"mno": "MTN",
"amount": 1,
"msisdn": "447911123111",
"description": "Awaiting",
"reference": "1234568djnfjnfjds"
}]';
$curl = curl_init();
curl_setopt_array($curl, array(
CURLOPT_URL => 'https://test.url.com/api/',
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 =>
echo ("'{<br>");
foreach($arr[$keys[$i]] as $key => $value) {
echo implode($key . " : " . $value . ",<br>");
}
echo "}',<br>";
CURLOPT_HTTPHEADER => array(
'Content-Type: application/json',
),
));
$response = curl_exec($curl);
curl_close($curl);
echo $response;
}
I want to use a for loop to make multiple curl request with different payloads, and the payloads are coming from the json data above. I converted the json to an array to be able to loop through and converted it back to a json for CURLOPT_POSTFIELDS.

Answer 1

This seems a simpler way to make multiple call to curl and save the responses, hope I got the right end of the stick this time :)
$recip =
'[
{"customerName": "Sorland", "mno": "Network", "amount": "1",
"msisdn": "447911123346","description": "Awaiting","reference": "0fgdufgdfgdfs"
},
{"customerName": "Corland","mno": "MTN","amount": 1,
"msisdn": "447911123678","description": "Awaiting","reference": "0jsbfbsubfhbj"
},
{"customerName": "orland","mno": "MTN","amount": 1,"msisdn": "447911123111",
"description": "Awaiting","reference": "1234568djnfjnfjds"
}
]';
// make a PHP datatype out of the JSON so you can use it
$recipients = json_decode($recip);
$responses = [];
foreach ( $recipients as $r) {
$curl = curl_init();
// convert $r back to json so it can be passed as param
$postfield = json_encode($r);
curl_setopt_array($curl, array(
CURLOPT_URL => 'https://test.url.com/api/',
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 => $postfield,
CURLOPT_HTTPHEADER => array('Content-Type: application/json')
));
$response[] = curl_exec($curl);
// if you need to know which customer the response was for
// use this next line instead, for example
//$response[$r->customerName] = curl_exec($curl);
curl_close($curl);
}
// this is now an array of all responses
print_r($responses);