An application that I improve from my previous work that I added display of user name with pictures that I wrote in PHP and MySQLi. This is a simple login system that is database. I hope you find my work useful.
I am currently accepting programming and web development work kindly contact me in the following email address for further details. Thank you.
My email address are the following jakerpomperada@gmail.com and jakerpomperada@yahoo.com.
My mobile number here in the Philippines is 09173084360.
My telephone number at home here in Bacolod City, Negros Occidental Philippines is +63 (034) 4335675.
Sample Program Output
Program Listing
connect_to_database.php
<?php
$localhost = "localhost";
$username = "root";
$password = "";
$dbname = "login";
// create connection
$connect = new mysqli($localhost, $username, $password, $dbname);
// check connection
if($connect->connect_error) {
die("connection failed : " . $connect->connect_error);
} else {
// echo "Successfully Connected";
}
?>
home.php
<?php
include 'connect_to_database.php'; //connect the connection page
if(empty($_SESSION)) // if the session not yet started
session_start();
if(!isset($_SESSION['username'])) { //if not yet logged in
header("Location: login.php");// send to login page
exit;
}
?>
<html>
<body>
<style>
.avatar {
vertical-align: middle;
width: 252px;
height: 220px;
border-radius: 150%;
border:5px solid white;
border-radius: 600px;
-webkit-border-radius: 600px;
-moz-border-radius: 600px;
}
body {
background-color: lightgreen;
font-family:arial;
font-size:20px;
}
input, button, select, option, textarea {
font-size: 100%;
}
</style>
<br>
<H2> Main Page </H2>
<img src="<?php echo $_SESSION['pix']; ?>" alt="It's my picture" class="avatar"/>
<br><br>
Welcome <b> <?php echo $_SESSION['firstname']. " ".$_SESSION['lastname']."."; ?> </b>
<br><br><br><br>
<a href="logout.php">Logout</a>
</body>
</html>
login.php
<?php
include 'connect_to_database.php'; //connect the connection page
if(empty($_SESSION)) // if the session not yet started
session_start();
if(isset($_SESSION['username'])) { // if already login
header("location: home.php"); // send to home page
exit;
}
?>
<html>
<head></head>
<body>
<style>
body {
background-color: lightgreen;
font-family:arial;
font-size:20px;
}
input, button, select, option, textarea {
font-size: 100%;
}
</style>
<br>
<h2> Login System with Pictures in PHP and MySQLi</h2>
<form action = 'login_process.php' method='POST'>
Enter Username:
<input type="text" name="username" /> <br><br>
Enter Password:
<input type="password" name="password" />
<br> <br>
<input type = "submit" name="submit" value="Ok" />
</form>
</body>
</html>
login_process.php
<html>
<body>
<style>
body {
background-color: lightgreen;
font-family:arial;
font-size:20px;
}
</style>
<?php
error_reporting(0);
include 'connect_to_database.php'; //connect the connection page
$username = $_POST['username'];
$password = $_POST['password'];
if(empty($_SESSION)) // if the session not yet started
session_start();
if(!isset($_POST['submit'])) { // if the form not yet submitted
header("Location: login.php");
exit;
}
$query = "SELECT * FROM `users` WHERE username='$username'
and password='$password'";
$result = mysqli_query($connect,$query) or die(mysql_error());
$rows = mysqli_num_rows($result);
if($rows==1){
$row2 = mysqli_fetch_array($result);
$_SESSION['username'] = $_POST['username'];
$_SESSION['lastname'] = $row2['lastname'];
$_SESSION['firstname']= $row2['firstname'];
$_SESSION['pix'] =$row2['pix'];
header("Location: home.php");
} else{ // if not a valid user
echo "<br>";
echo "<h2> Invalid Password !!! Try Again </h2>";
echo "<br>";
echo "<font name='arial'> <font size='5'>";
echo "<a href='logout.php'>Return To Login Page</a> " ;
echo "</font></font>";
}
?>
</body>
</html>
logout.php
<?php
session_start();
unset($_SESSION['username']);
session_destroy();
header("Location: login.php");
exit;
?>
users.sql
-- phpMyAdmin SQL Dump
-- version 4.7.7
-- https://www.phpmyadmin.net/
--
-- Host: 127.0.0.1
-- Generation Time: Mar 06, 2018 at 09:39 AM
-- Server version: 10.1.30-MariaDB
-- PHP Version: 7.2.2
SET SQL_MODE = "NO_AUTO_VALUE_ON_ZERO";
SET AUTOCOMMIT = 0;
START TRANSACTION;
SET time_zone = "+00:00";
/*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */;
/*!40101 SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS */;
/*!40101 SET @OLD_COLLATION_CONNECTION=@@COLLATION_CONNECTION */;
/*!40101 SET NAMES utf8mb4 */;
--
-- Database: `login`
--
-- --------------------------------------------------------
--
-- Table structure for table `users`
--
CREATE TABLE `users` (
`id` int(11) NOT NULL,
`username` varchar(200) NOT NULL,
`password` varchar(200) NOT NULL,
`lastname` varchar(200) NOT NULL,
`firstname` varchar(200) NOT NULL,
`pix` varchar(500) NOT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
--
-- Dumping data for table `users`
--
INSERT INTO `users` (`id`, `username`, `password`, `lastname`, `firstname`, `pix`) VALUES
(1, 'jake', 'jake', 'POMPERADA', 'JAKE', '/login/images/jake.jpg'),
(2, '123', '123', 'POMPERADA', 'JACOB SAMUEL', '/login/images/jacob.jpg'),
(3, 'iya', 'iya', 'POMPERADA', 'JULIANNA RAE', '/login/images/iya.jpg'),
(4, 'allie', 'allie', 'POMPERADA', 'MA. JUNALLIE', '/login/images/allie.jpg'),
(5, 'bill', 'bill', 'GATES', 'WILLIAM', '/login/images/gates.jpg'),
(6, 'peter', 'peter', 'NORTON', 'PETER', '/login/images/norton.jpg');
--
-- Indexes for dumped tables
--
--
-- Indexes for table `users`
--
ALTER TABLE `users`
ADD PRIMARY KEY (`id`);
--
-- AUTO_INCREMENT for dumped tables
--
--
-- AUTO_INCREMENT for table `users`
--
ALTER TABLE `users`
MODIFY `id` int(11) NOT NULL AUTO_INCREMENT, AUTO_INCREMENT=7;
COMMIT;
/*!40101 SET CHARACTER_SET_CLIENT=@OLD_CHARACTER_SET_CLIENT */;
/*!40101 SET CHARACTER_SET_RESULTS=@OLD_CHARACTER_SET_RESULTS */;
/*!40101 SET COLLATION_CONNECTION=@OLD_COLLATION_CONNECTION */;
