Get FB User Profile

GetFbProfile.php

<?php
/**
 * fetch profile of given fb's user id. fields are optional.
 */
function getFbProfile($userId, array $fields = [])
{
    $ACCESSS_TOKEN = 'YOUR_TOKEN_HERE';
    $BASE_URL = 'https://graph.facebook.com/v2.6';

    // fetch default fields if no fields passed
    if (empty($fields)) {
        $fields = [
            'first_name',
            'last_name',
            'profile_pic',
            'locale',
            'timezone',
            'gender'
        ];
    }

    $endpoint = sprintf("%s/%s?fields=%s&access_token=%s", 
        $BASE_URL,
        $userId, 
        implode(',', $fields), 
        $ACCESSS_TOKEN
    );

    return json_decode(file_get_contents($endpoint), true);
}