PHP Tutorial : Extract function

A shame for me but I must tell you this function called extract() simply rocks : it will extract “keys” from an array and convert them into variables, so no more needed to manually declare variables for validation purposes from forms.

<form action="" method="post">
name <input type="text" name="name"><br/>
email <input type="text" name="email"><br/>
<input type="submit" name="sb" id="sb" value="go">
</form>
<?php

if(isset($_POST['sb'])) {
extract($_POST);

if(empty($name) || empty($email)) die("email and name emtpy");

print "Name is $name and email is $email now!";
}
?>