Question

I’ve just switched over to using ADODB with MySQL and PHP… I’m having troubles with connecting to the database. Before, I could just have one global connection to the database and run queries of of that, but now it seems I need a new connection in each class?

Is that how it’s supposed to work or am I doing something wrong?

Connection made in config file:

include 'admin/db/adodb.inc.php';
$DB = NewADOConnection('mysql');
$DB->Connect($server, $db_user, $db_pwd, $db);

Class used:

class getuser {
    public function __construct($user_id) {
        $userquery = $DB->Execute("SELECT * FROM users WHERE id = '".$user_id."'");
        while($user = $userquery->FetchRow()){
            $this->uid = $user['id'];
            $this->username = $user['username'];
            $this->email = $user['email'];
        }
    }
}

The variables used to connect are all set fine. If I were to include the config file itself within then class the it works fine, so it must be to do with the scope of $DB?

Obviously I don’t want to have a new database connection for each class / query…

Also, do I need to worry about closing the connection at any point?

Many thanks in advance

Tim

Answer 1

It looks like you’re not informing PHP that $DB is a global variable. Try the following:

class getuser {
    public function __construct($user_id) {
        global $DB;
        $userquery = $DB->Execute("SELECT * FROM users WHERE id = '".$user_id."'");
        while($user = $userquery->FetchRow()){
            $this->uid = $user['id'];
            $this->username = $user['username'];
            $this->email = $user['email'];
        }
    }
}