<!DOCTYPE html>
<html>
<head>
<title>SQL Injection</title>
<link rel="shortcut icon" href="../Resources/hmbct.png" />
</head>
<body>
<div style="background-color:#c9c9c9;padding:15px;">
<button type="button" name="homeButton" onclick="location.href='../homepage.html';">Home Page</button>
<button type="button" name="mainButton" onclick="location.href='sqlmainpage.html';">Main Page</button>
</div>
<div align="center">
<form action="<?php $_SERVER['PHP_SELF']; ?>" method="post" >
<p>John -> Doe</p>
First name : <input type="text" name="firstname">
<input type="submit" name="submit" value="Submit">
</form>
</div>
<?php
$servername = "localhost";
$username = "root";
$password = "";
$db = "1ccb8097d0e9ce9f154608be60224c7c";
// Create connection
$conn = mysqli_connect($servername,$username,$password,$db);
// Check connection
if (!$conn) {
die("Connection failed: " . mysqli_connect_error());
}
//echo "Connected successfully";
if(isset($_POST["submit"])){
$firstname = $_POST["firstname"];
$sql = "SELECT lastname FROM users WHERE firstname='$firstname'";//String
$result = mysqli_query($conn,$sql);
if (mysqli_num_rows($result) > 0) {
// output data of each row
while($row = mysqli_fetch_assoc($result)) {
echo $row["lastname"];
echo "<br>";
}
} else {
echo "0 results";
}
}
?>
</body>
</html>