CODEWITHSUNDEEP
phpjsonapicurl
user4902588
user4902588

Reputation:

using CURL in php to retrieve data from an api

I have an api link which is working fine on terminal. I wand to use same api link to retrieve data using CURL in php. I tried below code:

<?php

// set up the curl resource

$ch = curl_init();
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/json'));
//curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_URL, 'urlxxxxx');
// execute the request

$output = curl_exec($ch);

// output the profile information - includes the header

echo  "curl response is : <br> ".($output). PHP_EOL;

// close curl resource to free up system resources

curl_close($ch);
?>

but I am getting response as :

curl response is : { "error" : "JSON syntax error: malformed JSON string, neither array, object, number, string or atom, at character offset 0 (before \"(end of string)\") at /usr/share/perl5/JSON.pm line 171.\n" }

I am new to CURL guide me regarding the issue for resolving it.

Upvotes: 2

Views: 1067

Answers (2)

Barmar
Barmar

Reputation: 780974

Add:

curl_setopt($ch, CURLOPT_POSTFIELDS, "{}");

so you send an empty JSON object as the parameter. This is the PHP equivalent of

-d "{}"

from the command line.

To put some other array into the post data, use json_encode.

$data = array('userId' => array(), 
              'user_list' => array("1", "2", "3", "4", "5", "6", "7", "8")
             );
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($data);

Upvotes: 1

TickTock
TickTock

Reputation: 29

You either need to set the method to 'GET' by removing curl_setopt($ch, CURLOPT_POST, true);
Or supplying valid JSON curl_setopt($curl, CURLOPT_POSTFIELDS, "{}");

Upvotes: 0

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