Niraj Shah niraj-shah

Line 4: We start by using the RedirectLoginHelper (you may be familiar with this from v4.0.x of the SDK). This is needed to generate the login / logout URLs and retrieve the Access Token from Facebook.

Lines 7-20: We check to see if the code has already been provided by Facebook after a login redirect. If we have one, we attempt to get the access_token using the helper (line 12), and then store this in the session (line 15).

Line 23: If we already have an access_token saved in the session we retrieve it here. The access_token saved on line 15 is also retrieved here. If the token does not exist, the $access_token variable will be null.

Line 26: We check if we have an access_token, and then make sure it hasn't expired.

Line 29: This is a function to set the default access_token for the user, so that all subsequent API calls use that token. If you don't want to set the default token, you can also pass it to requests manually.

	<?php

	try {
	// Be sure to ask for the publish_actions permission first
	// If you provided a 'default_access_token', third parameter '{access-token}' is optional.
	$response = $fb->post( '/me/feed', [
	'name' => 'Facebook API: Using the Facebook PHP SDK v4.1.x',
	'link' => 'https://www.webniraj.com/2015/02/19/facebook-api-using-the-facebook-php-sdk-v4-1-x/',
	'caption' => 'As version v4.1 of the Facebook PHP SDK nears release (at time of writing), I though this would be a good time to explain how the new version works. Migrating your application from v4.0.x to v4.1.x will break your application.',
	'message' => 'Check out my new blog post!',

	<?php

	// Set the location of the Facebook PHP SDK - this should point to directory containing autoload.php
	define( 'FACEBOOK_SDK_V4_SRC_DIR', './Facebook/' );

	// include required files from Facebook SDK
	require_once( 'Facebook/autoload.php' );

	// start the session
	session_start();

	<?php

	// login helper with redirect_uri
	$helper = $fb->getRedirectLoginHelper();

	// see if we have a code in the URL
	if ( isset( $_GET['code'] ) ) {

	// get new access token if we've been redirected from login page
	try {

	<?php

	// setup application using API keys and handlers
	$fb = new Facebook\Facebook([
	'app_id' => 'xxx',
	'app_secret' => 'yyy',
	'http_client_handler' => 'curl', // can be changed to stream or guzzle
	'persistent_data_handler' => 'session' // make sure session has started
	]);

	<?php

	// Set the location of the Facebook PHP SDK - this should point to directory containing autoload.php
	define( 'FACEBOOK_SDK_V4_SRC_DIR', './Facebook/' );

	// include required files from Facebook SDK
	require_once( 'Facebook/autoload.php' );

	// start the session
	session_start();

	<?php
	// define location of Parse PHP SDK, e.g. location in "Parse" folder
	// Defaults to ./Parse/ folder. Add trailing slash
	define( 'PARSE_SDK_DIR', './Parse/' );

	// include Parse SDK autoloader
	require_once( 'autoload.php' );

	// Add the "use" declarations where you'll be using the classes
	use Parse\ParseClient;

	# remote to local
	sudo rsync -uvzr -e 'ssh -p 2222 -l username' domain.com:/var/www/html/ /var/www/html

	# local to remote
	sudo rsync -uvzr /var/www/html/ -e 'ssh -p 2222 -l username' domain.com:/var/www/html

	<html>
	<head>
	<meta name="theme-color" content="#53A6DC">
	</head>
	<body>

	</body>
	</html>

	<?php

	// start session
	session_start();

	// kill the session
	session_destroy();

	// redirect back to website home
	header( 'Location: http://yourwebsite.com/login' );