How can create a login in PHP?

Question

How can create a basic login in PHP?
For my web project, i'm new in PHP.

Answer 1

Hi
by php and a little Html.

step1:create a 'login.html' file
that send username & password by submit bottom

step2: set its action to 'login.php' and "POST" method then create 'login.php" and get the inputs from "Session" .

step3: varify username and password with your own (also can create a "config.php" file that conect to a database then search and check them in users table ,don't forget to include config.php in other files.)

step4:after varify redirect to "home.html" or "login.html" again.

thats all.

Answer 2

For a real basic login then use something like the below. But really you should look into creating a full login system with sessions etc.

PLACE THIS AT TOP OF DOCUMENT
<?php
$username = "admin";
$password = "admin";
$nonsense = "ds89fe9e32hjsw0a82w";

if (isset($_COOKIE['PrivatePageLogin'])) {
if ($_COOKIE['PrivatePageLogin'] == md5($password.$nonsense)) {
?>

PLACE THIS AT BOTTOM OF DOCUMENT
<?php exit;} else {echo "Bad Cookie.";exit;}}
if (isset($_GET['p']) && $_GET['p'] == "login") {
if ($_POST['user'] != $username) {
echo "Sorry, that username does not match.";
exit;
} else if ($_POST['keypass'] != $password) {
echo "Sorry, that password does not match.";
exit;
} else if ($_POST['user'] == $username && $_POST['keypass'] == $password) {
setcookie('PrivatePageLogin', md5($_POST['keypass'].$nonsense));
header("Location: $_SERVER[PHP_SELF]");
} else {
echo "Sorry, you could not be logged in at this time. You may need to quit your browser session to kill the cookie previously set and then login again.";
}
}
?>
<form action="<?php echo $_SERVER['PHP_SELF']; ?>?p=login" method="post" style="width:250px;margin: 50px auto 0 auto;background-color:#ffffff;padding:15px;-moz-border-radius: 4px;-webkit-border-radius: 4px;border-radius: 4px;-khtml-border-radius: 4px;"><h1 style="font-family: arial; text-align: center;">LED Flex Products </h1>
<input type="text" name="user" id="user" placeholder="Username" style="padding: 7px;border: #cccccc 1px solid;border-radius:4px;float:left;width: 100%;margin-bottom: 10px;"/>
<input type="password" name="keypass" id="keypass" placeholder="Password" style="padding: 7px;border: #cccccc 1px solid;border-radius:4px;float:left;width: 100%;margin-bottom: 10px;"/>
<input type="submit" id="submit" class="button_select" value="Login" style="text-decoration: none; background-color:#111111;padding:12px;width:100%;border:solid 1px #111111;color:#ffffff;font-size:14px;transition: 0.3s;"/>

Answer 3

Salted md5 passwords are not a good idea.
Use sha256 instead.
http://php.net/manual/en/function.hash.php.
You shouldn't store passwords in cookies even if they are hashed.

Answer 4

What kind of login are you talking about. Is there a registration as well?