PHP语法验证器？

Question

Im just wondering if theres a recommended syntax validator out there anybody can recommend?

Having major issues and cant figure it out...

    <?php 
    session_start();
       if (isset ($_SESSION['id'])) {header("location: home.php");} 
       if (array_key_exists("login", $_GET)){$oauth_provider = $_GET['oauth_provider'];
       if ($oauth_provider == 'twitter')
       {
           header("Location: login-twitter.php");
       }  
       else if ($oauth_provider == 'facebook'){
           header("Location: login-facebook.php");
       }
       }
    ?>

 <a href="?login&oauth_provider=twitter">Twitter_Login</a>
 <a href="?login&oauth_provider=facebook">Facebook_Login</a>

Answer 1

php -l on the command-line will do a syntax check

codepad.org is an easy way to test code online.

Your example code does not contain syntax errors: http://codepad.org/0diycu9o