Sendandload undefined variable receiving

1

output is “error” even i send “hello”. what is the problem here?**

actionscript**


function dothis() {
    sv = new LoadVars();
    rv = new LoadVars();
    sv.v1 = "hello";
    sv.sendAndLoad("newsletter.php", rv);
    rv.onLoad = function(obj) {
        trace(rv.var1);
    };
}

**

php
**


$var1=$_POST["v1"];
if($var1=="hello") echo "&var1=ok&"; else echo "&var1=error&";