PHP not displaying MYSQL result
$dbhost = 'localhost';
$dbuser = 'root';
$dbpass = 'root';

$conn = mysql_connect($dbhost, $dbuser, $dbpass) or die ('Error connecting to mysql');

$dbname = 'test';

mysql_select_db($dbname);

mysql_select_db("test", $conn);

$result = mysql_query("SELECT * FROM new_table");

while($row = mysql_fetch_array($result))
  {
  echo $row['test1'] . " " . $row['test2'] . " " . $row['test3'];
  echo "<br />";
  }

mysql_close($con);

$result = mysql_query("SELECT * FROM new_table");

$result = mysql_query("SELECT * FROM new_table") or die(mysql_error());

mysql_close($con);

mysql_close($conn);

ini_set('display_errors','On');
ini_set('error_reporting',E_ALL);

mysql_select_db("test", $conn) or die(mysql_error());
mysql_select_db($dbname) or die(mysql_error());
$result = mysql_query("SELECT * FROM new_table") or die(mysql_error());

<?php
$result = mysql_query("SELECT * FROM new_table");
if(!$result)
     die('SQL query failed: ' . mysql_error());

$result = mysql_query("SELECT * FROM new_table") or die("error:".mysql_error());

try
        {

            $db = new mysqli("localhost","root","root","test");

            if ($db->connect_errno) {
                throw new Exception($db->connect_error);
            }

            if ($result = $db->query("SELECT * FROM new_table")) {
                printf("Select returned %d rows.n", $result->num_rows);


                while($row = $result->fetchAssoc())
                  {
                    echo $row['test1'] . " " . $row['test2'] . " " . $row['test3'];
                    echo "<br />";
                  }


                /* free result set */
                $result->close();
            }


            $db->close();
        }
        catch(Exception $e)
        {
                printf("Database Error: %sn", $e->getMessage());
                exit();

        }