login script php code example
Example 1: php login form
<?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>
Example 2: simple login form in php
<?php
session_start();
$errorMsg = "";
$validUser = $_SESSION["login"] === true;
if(isset($_POST["sub"])) {
$validUser = $_POST["username"] == "admin" && $_POST["password"] == "password";
if(!$validUser) $errorMsg = "Invalid username or password.";
else $_SESSION["login"] = true;
}
if($validUser) {
header("Location: /login-success.php"); die();
}
?>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="content-type" content="text/html;charset=utf-8" />
<title>Login</title>
</head>
<body>
<form name="input" action="" method="post">
<label for="username">Username:</label><input type="text" value="<?= $_POST["username"] ?>" id="username" name="username" />
<label for="password">Password:</label><input type="password" value="" id="password" name="password" />
<div class="error"><?= $errorMsg ?></div>
<input type="submit" value="Home" name="sub" />
</form>
</body>
</html>
Example 3: login javascript php
<aside id="login" class="col-md-4">
<div class="card">
<div class="card-body">
<a href="" class="float-right btn btn-outline-primary">Registro</a>
<h4 class="card-title mb-4 mt-1">Acceso</h4>
<hr />
<form method="post" name="login_form" id="login_form" action="" onsubmit="enviar(this); return false;">
<div class="form-group">
<input class="form-control" placeholder="Email" type="email" id="email" name="email" value="[email protected]" autocomplete />
</div>
<div class="form-group">
<input class="form-control" placeholder="******" type="password" id="password" name="password" autocomplete />
</div>
<div class="row">
<div class="col-md-6">
<div class="form-group">
<button type="submit" class="btn btn-primary btn-block" id="access" name="access">Acceso</button>
</div>
</div>
<div class="col-md-6 pt-2 pr-4 text-right">
<a class="small" href="#" class="">¿Olvidó su contraseña?</a>
</div>
</div>
</form>
<div class="row">
<div class="col-12">
<div class="outer-loader">
<span class="inner-loader"><img src="assets/img/loader.gif" alt="consultando ..." /></span>
<span class="messages"></span>
</div>
<span class="debug"></span>
</div>
</div>
</div>
</div>
</aside>
Example 4: login php
<?php
session_start();
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Login</title>
</head>
<body>
<form action="" method="POST">
<input type="password" name="password">
<button type="submit" name="submit">Login</button>
</form>
<?php
if(isset($_POST['submit'])){
if(password_verify($_POST['password'], '$2y$10$sejeRNYZGaoPh1EwfcuO1.hxl/uepQOh9SITWWgeej86vnMt26KIa')){
$_SESSION['login'] = true;
header("Location: http://localhost");
}
}
?>
</body>
</html>
Example 5: php login
/* na primeira linha usaremos o “action=ope.php” para que o formulário repasse
as informações para a página ope.php */
<form method="post" action="ope.php" id="formlogin" name="formlogin" >
<fieldset id="fie">
<legend>LOGIN</legend><br />
<label>NOME : </label>
// o campo “name” dentro do input e importante,
// pois será ele que armazenará os dados digitados .
<input type="text" name="login" id="login" /><br />
<label>SENHA :</label>
<input type="password" name="senha" id="senha" /><br />
<input type="submit" value="LOGAR " />
</fieldset>
</form>