Checkbox only returns first value - php

Question

I´m creating a form with checkboxes. But somehow I only get the first result back..
Hope you can help!
<strong>My form </strong>
<form action="historie.php" method="post">
<?php
// ophalen van bijbehorende producten
$sql_product_opzoek = "SELECT * FROM product_bestellingen WHERE bestelnummer = $bestelnummer_opzoek";
$sql_p_opzoek = mysqli_query($con, $sql_product_opzoek);
$count = 0;
while ($row = mysqli_fetch_array($sql_p_opzoek)) {
$artikelnr_retour = $row['artikelnr'];
$merk_retour = $row['merk'];
$artikelnr_lev_retour = $row['artikelnr_lev'];
$kleur_retour = $row['kleur'];
$maat_retour = $row['maat'];
$prijs_retour = $row['prijs'];
if ($count === 0) {
$sql_opzoek = "SELECT * FROM bestellingen WHERE bestelnummer = $bestelnummer_opzoek";
$sql_b_opzoek = mysqli_query($con, $sql_opzoek);
while ($row = mysqli_fetch_array($sql_b_opzoek)) {
$tent = $row['tent'];
}
echo $tent;
}
echo "
<input type=\"checkbox\" name=\"retour[" . $artikelnr_retour . "]\" value=\"" . $artikelnr_retour . "\">
<input type=\"hidden\" name=\"merk\" value=\"" . $merk_retour . "\">
<input type=\"hidden\" name=\"art_lev\" value=\"" . $artikelnr_lev_retour . "\">
<input type=\"hidden\" name=\"kleur\" value=\"" . $kleur_retour . "\">
<input type=\"hidden\" name=\"maat\" value=\"" . $maat_retour . "\">
<input type=\"hidden\" name=\"prijs\" value=\"" . $prijs_retour . "\">
<input type=\"hidden\" name=\"bestelnummer\" value=\"" . $bestelnummer_opzoek . "\">
";
if ($count === 0) {
echo "<input name=\"submit\" type=\"submit\">";
}
echo "</form>";
$count++;
}
This results in the next HTML
<strong>HTML</strong>
<form action="historie.php" method="post">
<tr>
<td>654655</td>
<td>Huggo Boss</td>
<td>xwsmcdD</td>
<td> 13</td>
<td>45</td>
<td>€ 99,95</td>
<td>123456</td>
<td>
<input type="checkbox" name="retour[654655]" value="654655">
<input type="hidden" name="merk" value="Huggo Boss">
<input type="hidden" name="art_lev" value="xwsmcdD">
<input type="hidden" name="kleur" value=" 13">
<input type="hidden" name="maat" value="45">
<input type="hidden" name="prijs" value="99,95">
<input type="hidden" name="bestelnummer" value="987654">
</td>
<td><input name="submit" type="submit"></td>
</tr>
</form>
<tr>
<td>100254</td>
<td>Maripe</td>
<td>Stun</td>
<td> 66</td>
<td>33</td>
<td>€ 295,95</td>
<td></td>
<td>
<input type="checkbox" name="retour[100254]" value="100254">
<input type="hidden" name="merk" value="Maripe">
<input type="hidden" name="art_lev" value="Stun">
<input type="hidden" name="kleur" value=" 66">
<input type="hidden" name="maat" value="33">
<input type="hidden" name="prijs" value="295,95">
<input type="hidden" name="bestelnummer" value="987654">
</td>
<td></td>
</tr>
</form>
To get the results I use the next PHP
PHP to get results
foreach ($_POST['retour'] as $value) {
echo $value;
}
This results only in the first result: 654655
Hope you can help!

Answer 1

Your form is close befor the second check box. Please try this code:-
<strong>HTML</strong>
<form action="historie.php" method="post">
<tr>
<td>654655</td>
<td>Huggo Boss</td>
<td>xwsmcdD</td>
<td> 13</td>
<td>45</td>
<td>€ 99,95</td>
<td>123456</td>
<td>
<input type="checkbox" name="retour[654655]" value="654655">
<input type="hidden" name="merk" value="Huggo Boss">
<input type="hidden" name="art_lev" value="xwsmcdD">
<input type="hidden" name="kleur" value=" 13">
<input type="hidden" name="maat" value="45">
<input type="hidden" name="prijs" value="99,95">
<input type="hidden" name="bestelnummer" value="987654">
</td>
<td></td>
</tr>
<tr>
<td>100254</td>
<td>Maripe</td>
<td>Stun</td>
<td> 66</td>
<td>33</td>
<td>€ 295,95</td>
<td></td>
<td>
<input type="checkbox" name="retour[100254]" value="100254">
<input type="hidden" name="merk" value="Maripe">
<input type="hidden" name="art_lev" value="Stun">
<input type="hidden" name="kleur" value=" 66">
<input type="hidden" name="maat" value="33">
<input type="hidden" name="prijs" value="295,95">
<input type="hidden" name="bestelnummer" value="987654">
</td>
<td></td>
</tr>
<input name="submit" type="submit">
</form>

Answer 2

There is no need to use <input type="checkbox" name="retour[654655]" value="654655">
Just use array. i.e.
<input type="checkbox" name="retour[]" value="654655">
<input type="checkbox" name="retour[]" value="100254">
This will give you $retour[0]=654655 and $retour[1]=100254

Answer 3

If you check both of the boxes, then both values should come through $_POST. If you only check one of the boxes, it only sends that value through $_POST.
Example:
One checkbox checked:
Both checkboxes checked:
Solution:
Try the following to make sure there is something in the $_POST at all times:
<input type="hidden" name="retour[654655]" value="0">
<input type="checkbox" name="retour[654655]" value="1">
If the value of $_POST['654655'] equals 1, it is present. If it equals 0 it is not present. The value of a checkbox will not be submitted as long as it is not checked.With the solution presented above the value of the hidden field will be overridden when the checkbox is checked.