PHP ?

[SilverDragonTears]

I tried to make it so that if a member has joined after Sep 11 the badge doesn't show up but if they joined before or on Sep 11 it shows. But it's showing up for some people who registered after. Here is my code

     
	
if($badge <= "Sep 11, 2011"){
        $badge = " <img src='/images/us.png' title='9/11 Badge'>";
}else if($badge <= "2011-09-11"){
        $badge = " <img src='/images/us.png' title='9/11 Badge'>";
}else if($badge >= "Sep 12, 2011"){
        $badge = "";
}else if($badge >= "2011-09-12"){
        $badge = "";
}