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# FB的SDK

laravel 導入 FB的SDK，用於取得用FB登入的用入的基本資料，並加以利用

## 安裝

找到composer.json檔，在裡面的require以下字串

```php
"facebook/graph-sdk": "^5.6",
```

然後update composer就安裝好了

## 設定

找到config>facebook.php

```php
return [
    'config' => [
        'app_id' => '875839542533172',
        'app_secret' => 'e5def9309b844b03c4e7698be49d93d3',
        'default_graph_version' => 'v2.11'
    ],
];
```

## 使用

這樣就可以使用它了，下面是呼叫的方式

```php
// 導入FB的SDK
$fb = new \Facebook\Facebook(config('facebook.config'));
$helper = $fb->getRedirectLoginHelper();

// $permissions = ['email']; // Optional permissions
$loginUrl = $helper->getLoginUrl(REDIRECT_URI.'loginthirdparty');
$button = '<a class="button button-big fb_login external" href="' . htmlspecialchars($loginUrl) . '">Facebook 登入</a>';
```


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