与mySQL相关的数据库名称

Question

I'm working on developing a website through Dreamweaver with html, php, and mySQL, and I wanna connect it to the localhost, so I installed easyPHP and added an alias in the local files with the name saadstore and the directory of the folder However, when I run my code it displays an error when the database name is selected! Instead if I run a page that doesn't interact with links and other pages in my site (doesn't need connection) it works just fine! Here's the code:

<?php
$db_host="localhost";
$db_username="root";
$db_pass="";
$db_name="saadstore";

mysql_connect("$db_host","$db_username","$db_pass")or die("Could not connect to mySQL"); 
mysql_select_db("$db_name")or die("no database");
?>

when I save and open the file from the localhost I get "no database" I'm kinda new to this so .. any help?

Answer 1

The mysql_* functions are deprecated/obsolete, and will soon be removed from PHP entirely, please don't use them.

Instead you should use PDO: http://php.net/pdo

Example from php.net:

<?php
/* Connect to an ODBC database using driver invocation */
$dsn = 'mysql:dbname=testdb;host=127.0.0.1';
$user = 'dbuser';
$password = 'dbpass';

try {
    $dbh = new PDO($dsn, $user, $password);
} catch (PDOException $e) {
    echo 'Connection failed: ' . $e->getMessage();
}