How do I disable / enable sections of my website with PHP + Checkboxes? - php

Question

I need help with enableing/disableing parts of my website.
<p>Disabled Sections:</p>
<form id="e-d-check" method="post">
<input type="checkbox" name="SRS" onchange="document.getElementById('e-d-check').submit()">SkiRegionSimulator 2012</input>
<input type="checkbox" name="Bilder" onchange="document.getElementById('e-d-check').submit()">Bilder</input>
<input type="checkbox" name="KWS" onchange="document.getElementById('e-d-check').submit()">Klimawandel-Stunde</input>
</form>
<table>
<tr>
<th>Name</th>
<th>Größe</th>
<th>Datum</th>
<th>Download</th>
</tr>
<?php
if (isset($_POST['SRS'])) {
echo 'Disabled SkiRegionSimulator 2012';
} else {
include'SRS.php';
}
?>
Everytime I uncheck the box it checks itself again...

Answer 1

Check if this works for you:
<?php
$disabled = array();
$disabled['SRS'] = isset($_POST['SRS']) && (int)$_POST['SRS'] === 1;
$disabled['Bilder'] = isset($_POST['Bilder']) && (int)$_POST['Bilder'] === 1;
$disabled['KWS'] = isset($_POST['KWS']) && (int)$_POST['KWS'] === 1;
?>
<p>Disabled Sections:</p>
<form id="e-d-check" method="post">
<input type="checkbox" value="1" <?php if($disabled['SRS'] === true) echo "checked"; ?> name="SRS" onchange="document.getElementById('e-d-check').submit()">SkiRegionSimulator 2012</input>
<input type="checkbox" value="1" <?php if($disabled['Bilder'] === true) echo "checked"; ?> name="Bilder" onchange="document.getElementById('e-d-check').submit()">Bilder</input>
<input type="checkbox" value="1" <?php if($disabled['KWS'] === true) echo "checked"; ?> name="KWS" onchange="document.getElementById('e-d-check').submit()">Klimawandel-Stunde</input>
</form>
<table>
<tr>
<th>Name</th>
<th>Größe</th>
<th>Datum</th>
<th>Download</th>
</tr>
<?php
if ($disabled['SRS'] === true) {
echo 'Disabled SkiRegionSimulator 2012';
} else {
include'SRS.php';
}
?>
We control what checkbox is checked by using the (guess!) checked attribute. If you are using XHTML then change checked to checked="checked"

Answer 2

A different but similar approach with submit onclick.
<?php
$check_SRS = "";
$check_Bilder = "";
$check_KWS = "";
if (isset($_POST['SRS']) && intval($_POST['SRS']) == 1) { $check_SRS = "checked";}
if (isset($_POST['Bilder']) && intval($_POST['Bilder']) == 1) { $check_Bilder = "checked";}
if (isset($_POST['KWS']) && intval($_POST['KWS']) == 1) { $check_KWS = "checked";}
?>
<p>Disabled Sections:</p>
<form id="e-d-check" method="post">
<input type="checkbox" name="SRS" value="1" onclick="submit()" <?php echo htmlspecialchars($check_SRS); ?>>SkiRegionSimulator 2012</input>
<input type="checkbox" name="Bilder" value="1" onclick="submit()" <?php echo htmlspecialchars($check_Bilder); ?>>Bilder</input>
<input type="checkbox" name="KWS" value="1" onclick="submit()" <?php echo htmlspecialchars($check_KWS); ?>>Klimawandel-Stunde</input>
</form>
<table>
<tr>
<th>Name</th>
<th>Größe</th>
<th>Datum</th>
<th>Download</th>
</tr>
<?php
if (isset($_POST['SRS']) && intval($_POST['SRS']) == 1) {
echo 'Disabled SkiRegionSimulator 2012';
} else {
include'SRS.php';
}
?>
A version of elseif statements to accommodate what are assumed to be the other includes depending on the state of the checkboxes - if one only can be checked:
<?php
if(intval($_POST['SRS']) == 1){
echo 'Disabled SkiRegionSimulator 2012';
}elseif(intval($_POST['SRS']) != 1){
include'SRS.php';
}elseif(intval($_POST['Bilder']) == 1){
echo 'Disabled Bilder';
}elseif(intval($_POST['Bilder']) != 1){
include'Bilder.php';
}elseif(intval($_POST['KWS']) == 1){
echo 'Disabled KWS';
}elseif(intval($_POST['KWS']) != 1){
include'KWS.php';
}
?>
if more than one can be checked:
<?php
if(intval($_POST['SRS']) == 1){
echo 'Disabled SkiRegionSimulator 2012';
}else{
include'SRS.php';
}
if(intval($_POST['Bilder']) == 1){
echo 'Disabled Bilder';
}else{
include'Bilder.php';
}
if(intval($_POST['KWS']) == 1){
echo 'Disabled KWS';
}else{
include'KWS.php';
}
?>