php $_Get ["variable"] isn't set even though it should be [on hold]

in my php file I have this:

<script>var editMode = 
<?php if(isset($_Get["e"])){
        if($_Get["e"]){
            echo "true";
        }else{
            echo "false";
        }
    }else{
        echo "0";
    }
?>;</script>

but when I visit the page with (my domain name)/EditMap.php?e=true the php code executed the echo "0" line which means for some reason it isnt getting the value of e from the url.