Need help connecting to my Mysql database on local server
<?php
include 'includes/databaseform.php';
$query = "SELECT * FROM userchanel";
$result = mysql_query($query);
while($person = mysql_fetch_array($result));
{
echo $person['chanelurl'];
}
?>

<?php
$dbhost = 'localhost';
$dbuser = 'root';
$dbpass ='';
$db = 'mysql_tut';
$conn = mysql_connect($dbhost,$dbuser,$dbpas);
mysql_select_db($userchanel);
?>

$conn = mysql_connect($dbhost,$dbuser,$dbpas);

$conn = mysql_connect($dbhost,$dbuser,$dbpass);

<?php
$db = new PDO('mysql:dbname=databasename', 'username', 'password',
    array(PDO::MYSQL_ATTR_INIT_COMMAND => "SET NAMES utf8"));

<?php
include 'includes/databaseform.php';
$query = $db->prepare("SELECT * FROM userchanel");
$query->execute();
while(($person = $query->fetch(PDO::FETCH_ASSOC)) !== false);
{
    echo $person['chanelurl'];
}

<?php
include 'includes/databaseform.php';
$query = $db->prepare("SELECT chanelurl FROM userchanel");
$query->execute();
while(($channelurl = $query->fetch(PDO::COLUMN)) !== false);
{
    echo $channelurl;
}