Untitled

<?php
$dbhost = "localhost:3306";
$dbuser = "user1";
$dbpass = "pass1";
$connection = mysqli_connect($dbhost, $dbuser, $dbpass);
if(!$connection){
die("connection error " . mysqli_error());
}
echo "connected successfully";
mysqli_close($connection);
?>

<?php
    $dbhost = "localhost:3306";
    $dbuser = "user1";
    $dbpass = "pass1";
    $connection = mysqli_connect($dbhost, $dbuser, $dbpass);
    if(!$connection){
        die("connection error " . mysqli_error());
    }
    echo "connected successfully";
    mysqli_close($connection);
?>

<html>
   <head>
      <title>Connecting MySQL Server</title>
   </head>
   <body>
      <?php
         $dbhost = 'localhost';
         $dbuser = 'user1';
         $dbpass = 'pass1';
         $conn = mysqli_connect($dbhost, $dbuser, $dbpass);
         if(! $conn ) {
            die('Could not connect: ' . mysql_connect_error());
         }
         echo 'Connected successfully';
         mysqli_close($conn);
      ?>
   </body>
</html>