Day 4 - Decision Making - Become PHP Expert in 30 days

[melbin]

http://php.flashwebhost.com/melbin/days.php

<?php
$day='Sunday';
if ($day="Sunday") {
    echo 'Have a nice Sunday';
}

else {
    echo 'Have a nice day';
}

In this code when i use == on line no:3

if ($day=="Sunday") {

i am getting the result as FALSE. Why ?

Doubt 2

Is it possible to get the day by using PHP date and time function ?