未定义的变量：_Post

Question

My email password script is showing error:

Notice: Undefined variable: _Post in C:\\xampp\\htdocs\\DreamWeaver\\EMPWScript.php on line 3 Fail - Please try again!

I define the variable, what is wrong?

<?php
    @session_start();
    $_SESSION['EMPW'] = $_Post['Email1'];
?>

Answer 1

You wrote:

$_SESSION['EMPW'] = $_Post['Email1'];

but PHP is case sensitive, so try this:

 $_SESSION['EMPW'] = $_POST['Email1'];

(In other words, POST has to be uppercase).

Answer 2

You can never be sure if it is POST or which variable type it is, so it could be better to always check and cast to the expected type.

$empw = (string) ($_POST['email] ?? '');
//here would be nice to throw some exception if email empty
$_SESSION['EMPW'] = $_POST['Email1'];