Instagram Get Access Token from Code in PHP

Following php code is not working for me to get access token In client id and secret key, i have replaced with my real client id and key.

<?php
$client_id = 'MY CLIENT ID';
$client_secret = 'MY CLIENT SECRET';
$redirect_uri = 'http://localhost/instagram/demo.php';
$scope = 'basic+likes+comments+relationships';

$url = "https://api.instagram.com/oauth/authorize?client_id=$client_id&redirect_uri=$redirect_uri&scope=$scope&response_type=code";

if(!isset($_GET['code']))
{
    echo '<a href="'.$url.'">Login With Instagram</a>';
}
else
{
    $code = $_GET['code'];

$apiData = array(
  'client_id'       => $client_id,
  'client_secret'   => $client_secret,
  'grant_type'      => 'authorization_code',
  'redirect_uri'    => $redirect_uri,
  'code'            => $code
);

$apiHost = 'https://api.instagram.com/oauth/access_token';

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $apiHost);
curl_setopt($ch, CURLOPT_POST, count($apiData));
curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($apiData));
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Accept: application/json'));
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$jsonData = curl_exec($ch);
curl_close($ch);

var_dump($jsonData);
$user = @json_decode($jsonData); 

echo '<pre>';
print_r($user);
exit;
}
?>

Above code always return false.. I can not figure out why this is not working.

Anybody debug this code and let me know what is problem in my code?

Since it's https already so you need to put this on your code

curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);  
curl_setopt($ch,CURLOPT_SSL_VERIFYHOST, false);

It's not about your redirect uri is in local or not. It's because SSL_VERIFYPEER is not set in your curl option

Well there are a few issues with your code. For one it seems like your redirect_uri is localhost. Obviously localhost to Instagram is their own servers. You need to provide a FQDN/world accessible url.

Also from http://php.net/manual/en/function.curl-setopt.php the code

curl_setopt($ch, CURLOPT_POST, count($apiData));

Should simple be

curl_setopt($ch, CURLOPT_POST, 1);

Your code is correct, but you need change

$redirect_uri = 'your site addres (not localhost)';

Example:

$client_id        = 'YOUR_CLIENT_ID';
$client_secret    = 'YOUR CLIENT SECRET';
$redirect_uri     = 'http://www.YOUR_SERVER.com/instagram/demo.php';
$scope            = 'basic+likes+comments+relationships';

If you execute this script with this change you can obtain this result.

stdClass Object
(
    [access_token] => 'your_ID'.xxxxxxx.xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
    [user] => stdClass Object
        (
            [username] => 'your username'
            [bio] => 
            [website] => 
            [profile_picture] => 'your url picture profile' 
            [full_name] => 
            [id] => 'your_ID'
        )

)

来源：https://stackoverflow.com/questions/15109463/instagram-get-access-token-from-code-in-php

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