Hello folks! welcome back to a new section of our tutorial on PHP. In this tutorial guide, we are going to be studying about the PHP MySQL Login.
This tutorial explains how to create a login page using MySQL Database. First, you will need special privileges in order to create or delete any MySQL Database. So assuming that you have access to root user, you can create a database making use of the mysql mysqladmin binary.
This tutorial explains how to create a login page using MySQL Database. First, you will need special privileges in order to create or delete any MySQL Database. So assuming that you have access to root user, you can create a database making use of the mysql mysqladmin binary.
Config.php
Config.php file has the complete details of MySQL Database configuration.
<?php define('DB_SERVER', 'localhost:3036'); define('DB_USERNAME', 'root'); define('DB_PASSWORD', 'rootpassword'); define('DB_DATABASE', 'database'); $db = mysqli_connect(DB_SERVER,DB_USERNAME,DB_PASSWORD,DB_DATABASE); ?>
Login.php
Login.php is having information about PHP and HTML script to do login.
<?php include("config.php"); session_start(); if($_SERVER["REQUEST_METHOD"] == "POST") { // username and password sent from form $myusername = mysqli_real_escape_string($db,$_POST['username']); $mypassword = mysqli_real_escape_string($db,$_POST['password']); $sql = "SELECT id FROM admin WHERE username = '$myusername' and passcode = '$mypassword'"; $result = mysqli_query($db,$sql); $row = mysqli_fetch_array($result,MYSQLI_ASSOC); $active = $row['active']; $count = mysqli_num_rows($result); // If result matched $myusername and $mypassword, table row must be 1 row if($count == 1) { session_register("myusername"); $_SESSION['login_user'] = $myusername; header("location: welcome.php"); }else { $error = "Your Login Name or Password is invalid"; } } ?> <html> <head> <title>Login Page</title> <style type = "text/css"> body { font-family:Arial, Helvetica, sans-serif; font-size:14px; } label { font-weight:bold; width:100px; font-size:14px; } .box { border:#666666 solid 1px; } </style> </head> <body bgcolor = "#FFFFFF"> <div align = "center"> <div style = "width:300px; border: solid 1px #333333; " align = "left"> <div style = "background-color:#333333; color:#FFFFFF; padding:3px;"><b>Login</b></div> <div style = "margin:30px"> <form action = "" method = "post"> <label>UserName :</label><input type = "text" name = "username" class = "box"/><br /><br /> <label>Password :</label><input type = "password" name = "password" class = "box" /><br/><br /> <input type = "submit" value = " Submit "/><br /> </form> <div style = "font-size:11px; color:#cc0000; margin-top:10px"><?php echo $error; ?></div> </div> </div> </div> </body> </html>
welcome.php
After a successful login, below code will display welcome page.
<?php include('session.php'); ?> <html"> <head> <title>Welcome </title> </head> <body> <h1>Welcome <?php echo $login_session; ?></h1> <h2><a href = "logout.php">Sign Out</a></h2> </body> </html>
READ: Form Validation in PHP
Logout.php
Logout.php has the information about how to logout from login session.
<?php session_start(); if(session_destroy()) { header("Location: login.php"); } ?>
session.php
The session.php verifies the session and if there is no session, it redirects to the login page.
<?php include('config.php'); session_start(); $user_check = $_SESSION['login_user']; $ses_sql = mysqli_query($db,"select username from admin where username = '$user_check' "); $row = mysqli_fetch_array($ses_sql,MYSQLI_ASSOC); $login_session = $row['username']; if(!isset($_SESSION['login_user'])){ header("location:login.php"); die(); } ?>
READ: Loops in PHP
Alright guys! This is where we are rounding up for this tutorial post. In our next tutorial guide, we are going to be discussing about the AJAX Search in PHP.
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Thanks for reading and bye for now.
