Ok, messing about with classes in PHP and can't get it to work the way I'm used to as a C++/Java-guy. In the "_init" funtion, if I run a query at the "// query works here" line", everythong works, but in the "getUserID" function, all that happens is said warning...

"getUserID" gets called from login.php (they are in the same dir):

login.php

<?php
include_once 'sitehandler.php';
include_once 'dbhandler.php';
session_start();

#TODO: Safer input handling
$t_userName = $_POST["name"];
$t_userId = $_SESSION['handler']['db']->getUserID($t_userName);

if ($t_userId != -1) {
    $_SESSION['user']['name'] = $t_userName;
    $_SESSION['user']['id'] = $t_userId;
}

//error_log("user: " . $_SESSION['user']['name'] . ", id: ". $_SESSION['user']['id']);
header("Location: " . $_SERVER["HTTP_REFERER"]);

?>

dbhandler.php

 <?php

include_once 'handler.php';

class DBHandler extends HandlerAbstract { private $m_handle;

function __construct() {
    parent::__construct();
}

public function test() {
    #TODO: isdir liquibase
    #TODO: isfile liquibase-195/liquibase + .bat + execrights
    $this->m_isTested = true;
}

public function _init() {
    if (!$this->isTested()) $this->test();
    if (!file_exists('files/data.db')) {
        #TODO: How to to if host is Windows based?
        exec('./files/liquibase-1.9.5/liquibase --driver=org.sqlite.JDBC --changeLogFile=files/data_db.xml --url=jdbc:sqlite:files/data.db update');
        #TODO: quit if not success
    }

    #TODO: Set with default data
    try {
        $this->m_handle = new SQLite3('files/data.db');
    } catch (Exception $e) {
        die("<hr />" . $e->getMessage() . "<hr />");
    }

    // query works here
    $this->m_isSetup = true;
}

public function teardown() {

}

public function getUserID($name) {
    //  PHP Warning:  SQLite3::prepare(): The SQLite3 object has not been correctly initialised in
    $t_statement = $this->m_handle->prepare("SELECT id FROM users WHERE name = :name");
    $t_statement->bindValue(":name", $name, SQLITE3_TEXT);
    $t_result = $t_statement->execute();
    //var_dump($this->m_handle);

    return ($t_result)? (int)$t_result['id']: -1;
}

}