<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<?php
if($name=$_POST['lastname']){
$where = "where last_name"
}
?>
<form method='post'>
<input type='text' name='lastname'><input>
<input type='submit'>
</form>
</body>
</html>
Made by Thijs Aarnoudse