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v0.1.2 2018-01-12 11:26 UTC

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Last update: 2022-04-30 15:22:16 UTC


Small authentication library for PHP, using SQLite as a database backend


composer require tlucas/liteauth

In the project file (e.g. project.php) you wish to use it in make sure you have


Then initialise the authentication object with:

$auth = new liteAuth\liteAuth('path/to/my/auth_database.db');

(Of course, you can call the object anything, but for the rest of this readme, we will assume you called it $auth)

Basic usage

User creation

The very first thing you will have to do, before logging in to liteAuth, is, of course, create a user.

This is done using:

$auth->newUser($user, $pass, $email, $fname, $sname, $admin);

Only the $user and $pass parameters are required, the rest are optional.

So, to give an example:

$auth->newUser('John', 'superstrongpassword');

We now have a user called John in the database, with the password superstrongpassword.

(If newUser() is successful it returns the new user's id , otherwise, it returns False)

(The other fields should be self-explanatory, with the posssible expception of the $admin. This is simply a True/False field, it has no special meaning within liteAuth, so you are free to use it however you will!)

From a form

There is also included a helper method registerFromPost(), to allow for easy registration form creation.

Place it at the target of a form, and it will look for the relevant post variables, to register a new user.

For example, you might have a file register.php containing


And another file signup.html:

<form action="register.php" method="post">
<input type="text" name="user" placeholder="Username"><br>
<input type="text" name="fname" placeholder="First name"><br>
<input type="text" name="sname" placeholder="Surname"><br>
<input type="email" name="email" placeholder="Email Address"><br>
<input type="password" name="pass" placeholder="Password"><br>
<input type="password" name="pass2" placeholder="Password"><br>
<input type="checkbox" name="admin"> Admin?<br>
<input type="submit" value="Register">

The register.php will take the data from signup.html and create a new user corresponding to the input.

BE CAREFUL: Anyone with access to the script calling registerFromPost() will be able to create a new user. Make sure this is only accessible by people who should have this authority!

One example would be to require an admin user to be logged in:



Logging in

Logging in is very similar to creating a user, you have the login() method you can call:

$auth->login($user, $pass);

After which, if the password correctly matches the user, it will return True and populate $auth->user

The following properties are available on the user object, once logged in:

$auth->user->user 		// User's username
$auth->user->first_name 	// User's first name, if set
$auth->user->surname 		// User's surname, if set
$auth->user->email		// User's email address, if set
$auth->user->admin		// If the user is set as an admin

There is also the special method


Which returns either the user's human name (ie. 'Firstname surname' or 'Firstname'), or falls back to username.

From a form

Just like with registration, there is a helper method for logging in from a form:


If you put that in, for example, login.php, the form at loginform.html:

<form action="login.php" method="post">
<input type="text" name="user" placeholder="Username"><br>
<input type="password" name="pass" placeholder="Password"><br>
<input type="submit" value="Login">

Will pass the appropriate values to sign in.

Modifying a user

To modify an existing user, you can edit any of the accessible properties, listed above, for example

$auth->user->first_name = 'Stephen';

And then call


And it will update the current user's first name to Stephen in the database.

Other methods


Returns a count of users that exist in the database


Returns False if no users exist (This is useful to allow for 'first run' setup procedures)