PayPal: Client Authentication failed fix

paypal-client-authentication-failed-fix.php

<?php

// 
// Assuming you already installed paypal/rest-api-sdk-php
// https://github.com/paypal/PayPal-PHP-SDK/wiki/Installation
//

// Autoload SDK package

// if using composer
require __DIR__  . '/vendor/autoload.php';

// else if using direct download
// require __DIR__  . '/PayPal-PHP-SDK/autoload.php';

// PayPal keys
$config['paypal'] = array(
	'client_id' => 'your_live_client_id_here',
	'secret'    => 'your_live_secret_here'
);

// PayPal API context
$api_context = new \PayPal\Rest\ApiContext(
        new \PayPal\Auth\OAuthTokenCredential(
            $config['paypal']['client_id'],
            $config['paypal']['secret']
        )
);

// Set mode to LIVE
$api_context->setConfig(
      array(
        'mode' => 'live'
      )
);

// 
// you may now create a new payment, etc.
//