Facebook login implemented

website/queries/Facebook/autoload.php

@@ -0,0 +1,79 @@
+<?php
+/**
+ * Copyright 2014 Facebook, Inc.
+ *
+ * You are hereby granted a non-exclusive, worldwide, royalty-free license to
+ * use, copy, modify, and distribute this software in source code or binary
+ * form for use in connection with the web services and APIs provided by
+ * Facebook.
+ *
+ * As with any software that integrates with the Facebook platform, your use
+ * of this software is subject to the Facebook Developer Principles and
+ * Policies [http://developers.facebook.com/policy/]. This copyright notice
+ * shall be included in all copies or substantial portions of the software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+/**
+ * You only need this file if you are not using composer.
+ * Why are you not using composer?
+ * https://getcomposer.org/
+ */
+
+if (version_compare(PHP_VERSION, '5.4.0', '<')) {
+    throw new Exception('The Facebook SDK requires PHP version 5.4 or higher.');
+}
+
+/**
+ * Register the autoloader for the Facebook SDK classes.
+ *
+ * Based off the official PSR-4 autoloader example found here:
+ * https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-4-autoloader-examples.md
+ *
+ * @param string $class The fully-qualified class name.
+ *
+ * @return void
+ */
+spl_autoload_register(function ($class) {
+    // project-specific namespace prefix
+    $prefix = 'Facebook\\';
+
+    // For backwards compatibility
+    $customBaseDir = '';
+    // @todo v6: Remove support for 'FACEBOOK_SDK_V4_SRC_DIR'
+    if (defined('FACEBOOK_SDK_V4_SRC_DIR')) {
+        $customBaseDir = FACEBOOK_SDK_V4_SRC_DIR;
+    } elseif (defined('FACEBOOK_SDK_SRC_DIR')) {
+        $customBaseDir = FACEBOOK_SDK_SRC_DIR;
+    }
+    // base directory for the namespace prefix
+    $baseDir = $customBaseDir ?: __DIR__ . '/';
+
+    // does the class use the namespace prefix?
+    $len = strlen($prefix);
+    if (strncmp($prefix, $class, $len) !== 0) {
+        // no, move to the next registered autoloader
+        return;
+    }
+
+    // get the relative class name
+    $relativeClass = substr($class, $len);
+
+    // replace the namespace prefix with the base directory, replace namespace
+    // separators with directory separators in the relative class name, append
+    // with .php
+    $file = rtrim($baseDir, '/') . '/' . str_replace('\\', '/', $relativeClass) . '.php';
+
+    // if the file exists, require it
+    if (file_exists($file)) {
+        require $file;
+    }
+});