I'm trying to use data sessions for checking a form, but, when I send user and password, and programme goes to check password, this return to main page.
I write 1234 on password field, but I can't understand why this don't work correctly.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Check</title>
</head>
<body>
<?php
$usuario = trim(htmlspecialchars($_REQUEST['username'], ENT_QUOTES, "UTF-8"));
$clave = trim(htmlspecialchars($_REQUEST['password'], ENT_QUOTES, "UTF-8"));
setcookie("usuario", $usuario, time()+60*60*24*365);
session_start();
$_SESSION['nom_user'] = $usuario;
$_SESSION['pass_user'] = $clave;
header('Location: nacimiento.php');
?>
<a href="index.php">Volver</a>
</body>
</html>
Second Page
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Fecha de Nacimiento</title>
</head>
<body>
<?php
session_start();
if (($_SESSION['pass_user'])=='1234'){
echo '<form action="check.php" method="POST">';
echo '<label for="fecha_nac">Fecha de Nacimiento</label><input type="date" name="fnacim" id="fnacim" />';
echo '<input type="submit" name="Enviar" />';
echo '</form>';
} else {`enter code here`
header('Location: index.php');
}
?>
<a href="index.php">Volver></a>
</body>
session_start() must be called before any output to the browser.
Please update your code on all php pages that use the session to be included first.
<?php
session_start();
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Fecha de Nacimiento</title>
</head>
<body>
<?php
if (($_SESSION['pass_user'])=='1234'){
echo '<form action="check.php" method="POST">';
echo '<label for="fecha_nac">Fecha de Nacimiento</label><input type="date" name="fnacim" id="fnacim" />';
echo '<input type="submit" name="Enviar" />';
echo '</form>';
} else {`enter code here`
header('Location: index.php');
}
?>
<a href="index.php">Volver></a>
</body>