I have an options form setup like this
When I press the submit button, I expect to call a function which draws a table from a SQL query
Trying to call said function like so:
<?php
$id = $_POST['id'];
if($id > 0) {
$sql2="SELECT * FROM data WHERE Id = '$id';";
$sql_res = mysqli_query($d,$sql2) or die("<h1>".mysqli_error()."</h1>");
tabula($sql_res);
}
?>
That results in an error - Undefined index: id
on line
$id = $_POST['id'];
Please help :(
From your screenshot, I can see that you have not specified a method attribute for the form tag.
The default method for form is GET.
Hence when the form is submitted, you will be getting the value of id in $_GET['id']
And since there was no $_POST['id'], it throwed you the undefined index id error.
Based on this, you can.
method of the form to POST.Example <form method="POST">
$_GET array.Example $id = $_GET['id'];
You can use $_REQUEST['id'] aswell.
$_REQUEST, by default, contains the contents of $_GET, $_POST and $_COOKIE.
Hope this helps.
