I have a custom file (that should reload itself after a change in my dropdown list). Here is my code (working test code in stand alone file):
<?php
$selected = '';
if (isset($_POST["Subject"])) {
$selected = $_POST["Subject"];
echo $selected;
}
?>
<h1>Demo Dropdown</h1>
<form name="contact" action="./demo.php" method="POST">
<select name="Subject" onchange="this.form.submit();">
<option selected value="Products">All Products</option>
<option value="Widgets1">Widgets1</option>
<option value="Widgets2">Widgets2</option>
<option value="Widgets3">Widgets3</option>
</select>
</form>
When I use this code in my custom file (including common files), I get the 400 Bad Request (when the form “action” is called). The code works perfectly in a stand alone file.
What am I missing reloading the file (on change of the dropdown), or more specific what am I missing with the form “action” part?
I also tested with:
action="<?php echo htmlspecialchars($_SERVER['PHP_SELF']); ?>" method="POST">
and it’s also working fine in the stand alone file.