Database connectie loopt mis. (Opgelost)

<?php 

function database_connect(&$link)
{
	$link = mysqli_connect('localhost', 'user', 'pass', 'database') or die ('Errrorrrr<br />');
}


?>

<?php 
 
function database_connect(&$link)
{
	$link = mysqli_connect('localhost', 'user', 'pass', 'database') or die ('Errrorrrr<br />');
}
 
 
?>

<?php

//openen van database connectie
database_connect(&$link);

//query definieren
$query = 'SELECT * FROM page WHERE lang == '.$lang.' AND page == '.$page.' ORDER BY id';

//query uitvoeren
$res = mysqli_query(&$link, $query);

//query fetchen
$row = mysqli_fetch_assoc($res);
?>

<?php
 
//openen van database connectie
database_connect(&$link);
 
//query definieren
$query = 'SELECT * FROM page WHERE lang == '.$lang.' AND page == '.$page.' ORDER BY id';
 
//query uitvoeren
$res = mysqli_query(&$link, $query);
 
//query fetchen
$row = mysqli_fetch_assoc($res);
?>