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I got this error undefined index. normally i know how to solve those errors except this one: looks like I forgot something somewhere???

<?php
session_start();
include 'dbcon.php';
$page = 'index.php';
if(isset($_GET['toevoegen'])){
$query ='SELECT partnr, hoeveelheid FROM producten WHERE partnr='.mysqli_real_escape_string($connectie,(int)$_GET['toevoegen']);
$result = mysqli_query($connectie, $query);
 while($result_row = mysqli_fetch_assoc($result)){
    if($result_row['hoeveelheid']!=$_SESSION['winkelwagen_'.$_GET['toevoegen']]){
        $_SESSION['winkelwagen_'.$_GET['toevoegen']]+='1';
    }
  }
}
?>
Alaeddine
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Akumu
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    Show us your full error message – Rizier123 Sep 17 '15 at 12:04
  • ( ! ) Notice: Undefined index: winkelwagen_0106-FW in D:\Installaties\wamp\www\winkelwagentest\winkelwagen.php on line 9 Call Stack # Time Memory Function Location 1 0.0004 253896 {main}( ) ..\winkelwagen.php:0 ( ! ) Notice: Undefined index: winkelwagen_0106-FW in D:\Installaties\wamp\www\winkelwagentest\winkelwagen.php on line 10 Call Stack # Time Memory Function Location 1 0.0004 253896 {main}( ) ..\winkelwagen.php:0 – Akumu Sep 17 '15 at 12:07
  • `$_SESSION['winkelwagen_'.$_GET['toevoegen']]` is undefined – Rizier123 Sep 17 '15 at 12:08
  • Looks like `$_SESSION['winkelwagen_...']` is not initialized. – Kenney Sep 17 '15 at 12:08
  • Okay and where do i have to initialize this, tried everything haha – Akumu Sep 17 '15 at 12:10
  • Define it before the while loop – Rizier123 Sep 17 '15 at 12:27
  • hmm....keep getting the same error. – Akumu Sep 17 '15 at 12:31

0 Answers0