HelloWorld Example in PHP (some bugs may occur)

// A simple web site in Cloud9 that runs through Apache
// Press the 'Run' button on the top to start the web server,
// then click the URL that is emitted to the Output tab of the console

echo 'Tutorial using PHP and PDO';

//variables to establish connection
$server = getenv('IP');
$pass = "";
$user = getenv('C9_USER');
$db = "c9";

//Try catch block for SQL statements
try{
    //String to create & connect to database
    $connect = new PDO("mysql:host=$server;dbname=$db", $user, $pass);
    $connect->setAttribute(PDO::ATTR_ERRMODE,PDO::ERRMODE_EXCEPTION);
    echo "
Created & Connected";
    //String to create table
    $line = "create table hello_world ( id int(2) auto_increment primary key,
                                        string varchar(50) not null,
                                        value varchar(10));";
    //$line = "drop table if exists hello_world";
    $connect->exec($line);
    echo "
Table created";
 
    //Prepare for multiple entries
    $line2 = $connect->prepare("insert into hello_world(string, value)
                values (:string, :value)");
    $line2->bindParam(':string', $str);
    $line2->bindParam(':value', $val);          
 
    $str = 'Obioku Obotette';
    $val = 'Name';
    $line2->execute();
 
    $str = 'Another User';
    $val = 'Blank';
    $line2->execute();
 
    echo "
Lines inserted into table";
 
    //retrieve data
    $line3 = $connect->prepare("select * from hello_world");
    $line3->execute();
    //$print = $line3->setFetchMode(PDO::FETCH_ASSOC);
    foreach($line3->fetchAll() as $show){
        echo "
";
        print_r($show);
    }
//Catch exception
}catch(PDOException $e)
{
    echo "
Error Occurred.".$e->getMessage();
}
?>