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PHP file upload and download; This example page demonstrates the function of four PHP file handling and directory scripts available (for free) on this site. PHP upload function - PHP Upload Class. This basic upload script is able to upload your script and has an option to replace an existing file on the web server.

Chat room, form processor, and guestbook. However, if you don't have a proper development environment or if you're anxious to get started, download a ready-to-run Unix or Windows executable. Before you download, you may want to review recent changes to the ImageMagick distribution. ImageMagick source and binary distributions are available from a variety of FTP and Web mirrors around. Java software for your computer, or the Java Runtime Environment, is also referred to as the Java Runtime, Runtime Environment, Runtime, JRE, Java Virtual Machine, Virtual Machine, Java VM, JVM, VM, Java plug-in, Java plugin, Java add-on or Java download. Here we’ll provide the example PHP code to force download file in PHP. Also, this simple PHP script helps to implement a download link which downloads a file from the directory. The following example script can be used for download any types of file like text, image, document, pdf, zip, etc. Download a File in PHP. YouTube is the most popular videos sharing platform where we watched videos online. However, we often need to get those YouTube videos for offline uses. The download occurred, but the resulting file was named after the script (i.e. If I renamed the downloaded file to its correct name, it would open just fine. This, however, was a terrible inconvenience. A bit of testing revealed the culprit. Most of the scripts had a line similar to this.

This is a Simple to Advanced Login Script System using PHP and MySQL. In this script, a form will be displayed with two fields, username, and password. When the user is submitting with valid username and password, then he can access authenticated page. Otherwise, users again have to fill in the form. This is a continuation from the last article Simple User Registration Script in PHP and MySql. If you want to follow next article these are the links.
Here you will learn about Simple Login System & also an advanced system. Simple Login Script System is targetted towards beginners and helps you to learn the script easily. Advanced Login Script System is more secure than the simple Login Script and it is targetted towards intermediate, advanced users even beginners also can easily understand it. I’ve also created video tutorials for both the Login Systems. And also I’ve created a video course, I highly encourage you to join my course. So that, you will learn more advanced topics in user login & registration system.

(i). Simple User Login Script in PHP & MySQL
(ii). Advanced User Login, Registration, Forgot(reset) Password in PHP & MySQL

(i). Steps to create Simple Login Script in PHP and MySQL

  1. First step we will connect to the database.
  2. Then we will select the database.
  3. We are checking, if the form is submitted or not. In this step we have two logic’s.
    • What if the form is submitted.
      1. If the form is submitted, we are assigning the posted values to variables and checking the values are existing in the database or not.
      2. If the values submitted in the form and the values in the database are equal, then we will create a session for the user.
      3. If the values are not equal then it will display an error message.
      4. And then we checks for the session, if the session exists we will great him with the username, otherwise the form will be displayed.
    • What if not the form is submitted.
      1. When the user comes first time, he will be displayed with a simple form.
      2. User Name, Password and a submit button.

Below is the Video on Simple User Login Registration Script in PHP

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If you are already following from previous article, you should already have database table created. If you don’t have create the table.

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<h2 class='form-signin-heading'>Please Login</h2>
<span class='input-group-addon'id='basic-addon1'>@</span>
<input type='text'name='username'class='form-control'placeholder='Username'required>
<label for='inputPassword'class='sr-only'>Password</label>
<input type='password'name='password'id='inputPassword'class='form-control'placeholder='Password'required>
<button class='btn btn-lg btn-primary btn-block'type='submit'>Login</button>
<a class='btn btn-lg btn-primary btn-block'href='register.php'>Register</a>

3. Adding styles to Login Form

And the styles for the form, if you have added styles in previous article. Skip this step.

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<link rel='stylesheet'href='https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css' >
<!-- Optional theme -->
<link rel='stylesheet'href='https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap-theme.min.css' >
<link rel='stylesheet'href='styles.css' >
<!-- Latest compiled and minified JavaScript -->
<script src='https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js'></script>
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padding-top:40px;
background-color:#eee;
max-width:330px;
margin:0auto;
.form-signin .form-signin-heading,
margin-bottom:10px;
.form-signin .checkbox {
}
position:relative;
-webkit-box-sizing:border-box;
box-sizing:border-box;
font-size:16px;
.form-signin .form-control:focus {
}
margin-bottom:-1px;
border-bottom-left-radius:0;
.form-signin input[type='password'] {
border-top-left-radius:0;
}

If you are following from previous user registration article, no need to create this file. Other wise create connect.php file.

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$connection=mysqli_connect('localhost','root','Rvm@i[9)0?~=');
die('Database Connection Failed'.mysqli_error($connection));
$select_db=mysqli_select_db($connection,'test');
die('Database Selection Failed'.mysqli_error($connection));

5. PHP Logic for User Login

And this is the PHP code for logging in user

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session_start();
//3. If the form is submitted or not.
if(isset($_POST['username'])andisset($_POST['password'])){
$username=$_POST['username'];
//3.1.2 Checking the values are existing in the database or not
$query='SELECT * FROM `user` WHERE username='$username' and password='$password';
$result=mysqli_query($connection,$query)ordie(mysqli_error($connection));
//3.1.2 If the posted values are equal to the database values, then session will be created for the user.
$_SESSION['username']=$username;
//3.1.3 If the login credentials doesn't match, he will be shown with an error message.
}
//3.1.4 if the user is logged in Greets the user with message
$username=$_SESSION['username'];
';
';
//3.2 When the user visits the page first time, simple login form will be displayed.

Logout.php

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session_start();
header('Location: login.php');

Complete Code of login.php

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session_start();
//3. If the form is submitted or not.
if(isset($_POST['username'])andisset($_POST['password'])){
$username=$_POST['username'];
//3.1.2 Checking the values are existing in the database or not
$query='SELECT * FROM `user` WHERE username='$username' and password='$password';
$result=mysqli_query($connection,$query)ordie(mysqli_error($connection));
//3.1.2 If the posted values are equal to the database values, then session will be created for the user.
$_SESSION['username']=$username;
//3.1.3 If the login credentials doesn't match, he will be shown with an error message.
}
//3.1.4 if the user is logged in Greets the user with message
$username=$_SESSION['username'];
';
';
//3.2 When the user visits the page first time, simple login form will be displayed.
<html>
<title>User Login Using PHP&MySQL</title>
<!--Latest compiled andminified CSS-->
<link rel='stylesheet'href='https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css'>
<!--Optional theme-->
<link rel='stylesheet'href='https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap-theme.min.css'>
<link rel='stylesheet'href='styles.css'>
<!--LatestcompiledandminifiedJavaScript-->
<script src='https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js'></script>
<body>
<div class='container'>
<?phpif(isset($fmsg)){?><div class='alert alert-danger'role='alert'><?phpecho$fmsg;?></div><?php}?>
<div class='input-group'>
<span class='input-group-addon'id='basic-addon1'>@</span>
<input type='text'name='username'class='form-control'placeholder='Username'required>
<label for='inputPassword'class='sr-only'>Password</label>
<input type='password'name='password'id='inputPassword'class='form-control'placeholder='Password'required>
<button class='btn btn-lg btn-primary btn-block'type='submit'>Login</button>
<aclass='btn btn-lg btn-primary btn-block'href='register.php'>Register</a>
</div>
</body>
</html>

If you want to learn other things you can read other posts – registration, login, user login with activation check, and sending forgotten password by email, Check Username Availability .

(ii). Steps to create Advanced Login Script System in PHP and MySQL

In the above simple login script, we have some flaws. That is I’m using plain text passwords and it is easy to do SQL injections and lot more. Because that is targetted to beginners for learning purpose.

Here in this advanced login system, you will learn a lot of advanced things and some of the features are below.

  • Login with User Name or E-Mail
  • Securing Login from SQL injections
  • Encrypting Users Password
  • Login using PHP Sessions
  • Only Active Users Can Login

In this script we will start by checking the session, if the user already logged in he will be redirected to index.php page that is members area. After the form submission, we check post superglobal isset and not empty. In this code, I’m using DB connection from above code, database table and HTML form from our above code.

Here I’m just working on improving PHP logic from above code.

Below is the Video on Advanced & Secure PHP User Login Registration Script With All Features

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Do you want to Build Secure Members Area for your Website?

I've good News for you! Created a Video Course with 5 Hours of Content to create secure members area section

If the post superglobal is set and not empty, if it’s true I’m assigning the submitted values to variables using this code and encrypting password to md5 hashing instead of plain text password.

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$username=mysqli_real_escape_string($connection,$_POST['username']);
}

After that, I’m writing an SQL query to check the user details in database tables with submitted user information. Executing the query and also counting the number of rows in result set. If the number of rows is equal to one then we will set the session and redirect the user to members area page. Otherwise, we will display an error message. I’m already displaying these messages in above the form HTML code, if you are following from above you will already have it.

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$sql='SELECT * FROM `user` WHERE username='$username' AND password='$password';
$count=mysqli_num_rows($res);
if($count1){
header('location: members/index.php');
$fmsg='User does not exist';

And next important cocept is user will be able to login with username or email. For that I’ll modify the SQL query little bit. So, that we will check the submitted value if it’s email we will check it with email column. If it’s not email we will check it in username column. And I’m creating SQL query over couple of conditions and statments.

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if(filter_var($username,FILTER_VALIDATE_EMAIL)){
}else{
}

Checking the user, if his account is activated then only we will allow hime to login otherwise he won’t be able to login. For that I’m using active column, if the user activates his account by verifying his email. Then only his account status becomes active, that means active column becomes to 1.

Here is the improved code with above discussed condition.

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if(filter_var($username,FILTER_VALIDATE_EMAIL)){
}else{
}

Complete code of Advanced Login Script System in PHP & MySQL

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$username=mysqli_real_escape_string($connection,$_POST['username']);
$sql='SELECT * FROM `user` WHERE ';
$sql.='email='$username';
$sql.='username='$username';
$sql.=' AND password='$password' AND active=1';
$res=mysqli_query($connection,$sql);
$_SESSION['username']=$username;
}else{
}

Next Steps After User Login

Password Encryption

Instead of md5 hashing algorithm, use password_verify PHP function in conjection with password_hash PHP fucntion. This password_hash should be used while registering users and while login you can use password_verify PHP function.

I hope this article helped you to learn user login using PHP and MySQL . To get latest news and updates follow us on twitter & facebook, subscribe to newsletter. If you have any feedback please let us know by using comment form.

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