Need help connecting to my Mysql database on local server - mysql

Question

I'm quite new to databases and have no idea where I have gone wrong. Please help me find out why I can't connect to my database.
I'm getting an error with Dreamweaver - Dynamicaly-related files cannot be discovered because there is no site definition for this document
My Site root is located in htdocs.
the main file I'm trying to run is "dataquery.php" - htdocs/LetsPlays/dataquery.php
<?php
include 'includes/databaseform.php';
$query = "SELECT * FROM userchanel";
$result = mysql_query($query);
while($person = mysql_fetch_array($result));
{
echo $person['chanelurl'];
}
?>
Dataquery is connected to "databaseform.php" - htdocs/LetsPLays/includes/databaseform.php
<?php
$dbhost = 'localhost';
$dbuser = 'root';
$dbpass ='';
$db = 'mysql_tut';
$conn = mysql_connect($dbhost,$dbuser,$dbpas);
mysql_select_db($userchanel);
?>
So I'm trying to connect to userchanel table through user tbl
screenshot: http://imageshack.us/f/23/usertbl.png/
Files run through wordpress are set up to run on 127.0.0.1
Please help me.
Sorry for the noobishness! I have no idea what I'm missing!
When I run the html file all I get is a blank page!

Answer 1

Replace the line
$conn = mysql_connect($dbhost,$dbuser,$dbpas);
with
$conn = mysql_connect($dbhost,$dbuser,$dbpass);
notice the double 's' on $dbpass, also if I may you should not rely on deprecated features when writing new code, use PDO instead, also don't login to db as root, create a user, don't be lazy, with that your database connection code should like:
<?php
$db = new PDO('mysql:dbname=databasename', 'username', 'password',
array(PDO::MYSQL_ATTR_INIT_COMMAND => "SET NAMES utf8"));
the init command is not actually necessary I just included it cause I always use it, while the querying could be done as
<?php
include 'includes/databaseform.php';
$query = $db->prepare("SELECT * FROM userchanel");
$query->execute();
while(($person = $query->fetch(PDO::FETCH_ASSOC)) !== false);
{
echo $person['chanelurl'];
}
If you're only using one column you should fetch only that as below:
<?php
include 'includes/databaseform.php';
$query = $db->prepare("SELECT chanelurl FROM userchanel");
$query->execute();
while(($channelurl = $query->fetch(PDO::COLUMN)) !== false);
{
echo $channelurl;
}
I didn't include closing braces for php code as they are not necessary also do some error checking var_dump($db->errorInfo()); and var_dump($query->errorInfo()); - didn't include this in the code as I only use them in checking any issues with my code, good luck!

Answer 2

instead of htdocs/LetsPlays/dataquery.php
try localhost/dataquery.php

Answer 3

I recommend you to make and additional file for database connection and include it anywhere you need. Because when you need to push project live you need to change in every file incase file is includeed you need to change just at one place and it effects every where connection for localhost is
<?php
// Replace the variable values below
// with your specific database information.
$host = "localhost";
$user = "root";
$pass = "";
$db = "yourdatabase";
// This part sets up the connection to the
// database (so you don't need to reopen the connection
// again on the same page).
$ms = mysql_pconnect($host, $user, $pass);
if ( !$ms )
{
echo "Error connecting to database.\n";
}
// Then you need to make sure the database you want
// is selected.
mysql_select_db($db);
?>
Save all the above code in one file save it as dbConfig.php and include it any where
like
include ("dbConfig.php");
Now in that file you are connected to db you can interact with database.