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70 lines
2.4 KiB
70 lines
2.4 KiB
<?php
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/**
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* Copyright 2014 Facebook, Inc.
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*
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* You are hereby granted a non-exclusive, worldwide, royalty-free license to
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* use, copy, modify, and distribute this software in source code or binary
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* form for use in connection with the web services and APIs provided by
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* Facebook.
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*
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* As with any software that integrates with the Facebook platform, your use
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* of this software is subject to the Facebook Developer Principles and
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* Policies [http://developers.facebook.com/policy/]. This copyright notice
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* shall be included in all copies or substantial portions of the software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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*/
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/**
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* You only need this file if you are not using composer.
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* Why are you not using composer?
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* https://getcomposer.org/
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*/
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if (version_compare(PHP_VERSION, '5.4.0', '<')) {
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throw new Exception('The Facebook SDK v4 requires PHP version 5.4 or higher.');
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}
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/**
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* Register the autoloader for the Facebook SDK classes.
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* Based off the official PSR-4 autoloader example found here:
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* https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-4-autoloader-examples.md
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*
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* @param string $class The fully-qualified class name.
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* @return void
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*/
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spl_autoload_register(function ($class)
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{
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// project-specific namespace prefix
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$prefix = 'Facebook\\';
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// base directory for the namespace prefix
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$base_dir = defined('FACEBOOK_SDK_V4_SRC_DIR') ? FACEBOOK_SDK_V4_SRC_DIR : __DIR__ . '/src/Facebook/';
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// does the class use the namespace prefix?
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$len = strlen($prefix);
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if (strncmp($prefix, $class, $len) !== 0) {
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// no, move to the next registered autoloader
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return;
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}
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// get the relative class name
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$relative_class = substr($class, $len);
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// replace the namespace prefix with the base directory, replace namespace
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// separators with directory separators in the relative class name, append
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// with .php
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$file = $base_dir . str_replace('\\', '/', $relative_class) . '.php';
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// if the file exists, require it
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if (file_exists($file)) {
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require $file;
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}
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}); |