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login3.php
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login3.php
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<?php
session_start();
include("connection.php");
include("function.php");
if($_SERVER['REQUEST_METHOD'] == "POST")
{
//SOMETHING WAS POSTED
$user_name = $_POST['user_name'];
$password = $_POST['password'];
if(!empty($user_name) && !empty($password) && !is_numeric($user_name))
{
//read from from db
$query = "select * from users where user_name = '$user_name' limit 1";
$result = mysqli_query($con, $query);
if($result)
{
if($result && mysqli_num_rows($result) > 0)
{
$user_data = mysqli_fetch_assoc($result);
if($user_data['password'] === $password)
{
$_SESSION['user_id'] = $user_data['user_id'];
header("Location: index.php");
die;
}
}
}
echo "wrong username or password";
}else
{
echo "please provide valid information";
}
}
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Login</title>
</head>
<body>
<style type="text/css">
#text{
height: 25px;
border-radius: 5px;
padding: 4px;
border: solid thin #aaa;
width: 100%;
}
#button{
padding: 10px;
width: 100px;
color: white;
background-color: lightblue;
border: none;
}
#box{
background-color: grey;
margin: auto;
width: 300px;
padding: 20px;
}
</style>
<div id="box">
<form method="post">
<div style="font-size: 20px; margin: 10px; color: white;">Login page</div>
<input id="text" type="text" name="user_name"><br><br>
<input id="text" type="password" name="password"><br><br>
<input id="button" type="submit" value="Login"><br><br>
<a href="signup.php">Click to Signup</a><br><br>
</form>
</div>
</body>
</html>