Very simple feedback form, please help for the noob!

Hi all,

here my simple code:

<?php
  
$name = $_REQUEST['name']; 
$email = $_REQUEST['text']; 
$comment = $_REQUEST['comment']; 

mail( "mymail@xyz.xz", "Feedback Form",
$name, $comment, "From: $email" );
header( "Location: http://www.megawhite.au" );

?>

Code (markup):

I need to check, if ALL of the fields are filled. If yes - then go to www.megawhite.. if NOT - to some other www.

I know, that it is somehow possible with "empty" command..

Can You put me on the right way, please?

Thanx.

 

how about:

if ($name && $email && $comment) {
     header( "Location: http://www.megawhite.au" );
} else {
     header( "Location: http://www.someothersite.com" );
}

PHP:

?

 

name: 1, email: 1, comment: 1
form filled!

How about:

Turn register_globals off first.

<?PHP
if (!empty($_POST['email'])) && preg_match("(?:[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*|"(?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21\x23-\x5b\x5d-\x7f]|\\[\x01-\x09\x0b\x0c\x0e-\x7f])*")@(?:(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?|\[(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?|[a-z0-9-]*[a-z0-9]:(?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21-\x5a\x53-\x7f]|\\[\x01-\x09\x0b\x0c\x0e-\x7f])+)\])", $_POST['email'])) {
  $email = $_POST['email'];
}
if (!empty($_POST['name'])) && preg_match("/^[A-Za-z]{1,}\s[A-Za-z\']{2,}$/", $_POST['name'])) {
  $name = $_POST['name'];
}
if (!empty($_POST['comment']) && preg_match("/^[A-Za-z0-9\s.-\#\@\x10\x13]{10,}$/")) {
  $comment = $_POST['comment'];
}

if (isset($name) && isset($email) && isset($comment)) {
  header("Location: http://www.megawhite.au/", 200);
} else {
  header("Location: http://www.google.com.au/", 403);
}

?>

PHP:

 

the globals are turning off on my host? i have done it in the begining, if i understood correctly