wat moet ik veranderen? (Opgelost)

<?php 
function niveau($n, &$output, $niv=0){ 
    $result[$n] = mysql_query("SELECT * FROM link_system WHERE parent='".$n."' ORDER BY volgorde"); 
    while($row[$n] = mysql_fetch_object($result[$n])){ 
        $output .= str_repeat("&nbsp;", 7*$niv); 
        $output .= "<a href='".$row[$n]->url."' title='".$row[$n]->tooltip."'>".$row[$n]->text."</ 

a><br>"; 
        niveau($row[$n]->id, &$output, $niv+1); 
    } 
} 

mysql_connect() or die("Couldn't connect to database"); 
//verander dit! 
mysql_select_db("test") or die(mysql_error()); 
$output = ""; 
niveau(0, &$output, 0); 
print $output; 
?> 

<?php 
function niveau($n, &$output, $niv=0){ 
    $result[$n] = mysql_query("SELECT * FROM link_system WHERE parent='".$n."' ORDER BY volgorde"); 
    while($row[$n] = mysql_fetch_object($result[$n])){ 
        $output .= str_repeat("&nbsp;", 7*$niv); 
        $output .= "<a href='".$row[$n]->url."' title='".$row[$n]->tooltip."'>".$row[$n]->text."</ 
 
a><br>"; 
        niveau($row[$n]->id, &$output, $niv+1); 
    } 
} 
 
mysql_connect() or die("Couldn't connect to database"); 
//verander dit! 
mysql_select_db("test") or die(mysql_error()); 
$output = ""; 
niveau(0, &$output, 0); 
print $output; 
?>

<?php
mysql_connect("localhost", "gebruiker", "wachtwoord") or die("Couldn't connect to database");

<?php
mysql_connect("localhost", "gebruiker", "wachtwoord") or die("Couldn't connect to database");