When I'm using mysqli without class it's going ok:
index.php
require_once(dirname(__FILE__) . '/config.php');
$mysqli = new mysqli($hostname, $username, $password, $dbname);
$queryText = "SELECT * FROM User";
if($query = $mysqli->query($queryText)) {
$results = $query->fetch_array();
echo $results['userId'];
} else {
echo "Error ";
echo $mysqli->errno . " " . $this->mysqli->error;
}
?>
But when I start using mysqli with class something goes wrong. connectDB doesn't give any error, so i get connected to DB. But then when trying do any query it give me "No database selected error" Result of index.php is: Error 1046 No database selected
index.php
<?php
require_once(dirname(__FILE__) . '/banana.php');
$banana = new Banana(1);
if ($banana->connectDB()) {
$banana->doQuery();
}
?>
banana.php
<?php
require_once(dirname(__FILE__) . '/config.php');
class Banana {
private $mysqli, $userId, $query;
function __construct($userId) {
$this->userId = $userId;
}
function __destruct() {
$this->mysqli->close();
}
public function connectDB() { // Подключение к БД
$this->mysqli = new mysqli($hostname, $username, $password, $dbname);
if ($this->mysqli->connect_errno) {
echo "Error (" . $this->mysqli->connect_errno . ") " . $this->mysqli->connect_error;
return false;
}
return true;
}
public function doQuery() {
$queryText = "SELECT * FROM User";
if($this->query = $this->mysqli->query($queryText)) {
$results = $query->fetch_array();
echo $results['userId'];
} else {
echo "Error ";
echo $this->mysqli->errno . " " . $this->mysqli->error;
}
}
?>
So it's very frustrating. I'm about 2 weeks in php, but can't find answer for couple days. I guess the answer is obvious but I can't see it. Thank you for your time and patience.