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我想创建一个 PHP 脚本来检查用户是否喜欢该页面。如果用户喜欢该页面，他将被重定向到另一个 URL，如果不是，则要求用户喜欢该页面，并且出现 facebook 喜欢按钮，以便用户可以喜欢。

请问这怎么做？我设法掌握了这个脚本并得到了错误。请问有什么帮助吗？

谢谢

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
    <head>
        <meta http-equiv="content-type" content="text/html; charset=utf-8" />
        <title>Facebook "If-Like" Application | ThreeDots</title>
    </head>
    <body>
    <?php
        include_once( "facebook.php" );

        $fbAppArray = array(
            'appId'  => 'YOUR_APPLICATION_ID',
            'secert' => 'YOUR_APPLICATION_SECRET',
            'cookie' => true
        );

        $fbAppObj = new Facebook( $fbAppArray );

        $signedRequest = $fbAppObj->getSignedRequest();

        function parsePageSignedRequest()
        {
            if( isset( $_REQUEST['signed_request'] ) )
            {
                $encoded_sig = null;
                $payload = null;

                list( $encoded_sig, $payload ) = explode( '.', $_REQUEST['signed_request'], 2 );

                $sig = base64_decode( strtr( $encoded_sig, '-_', '+/' ) );
                $data = json_decode( base64_decode( strtr( $payload, '-_', '+/' ), true ) );

                return $data;
            }

            return false;
        }

        if( $signedRequest = parsePageSignedRequest() )
        {
            if( $signedRequest->page->liked )
            {
                // What to show the user if he liked the application...
            }else{
                // Please like the application so you will be able to see the contents...
            }
        }
    ?>
    </body>
</html>
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1 回答 1

0
于 2012-06-24T15:36:49.227 回答