A question on method calling in PHP

Hi:

I have a question on calling a method in PHP.

suppose I have file class1.php which contains class1
class class1{
var $a1;

function class1()
{
$this->a1 = "hello";
}

function t1()
{
return $this->a1;
}
}
?>
in test.php I have the ff:
include("class1.php");
$obj = new class1();
$a = "test";

die("this is $a message=$obj->t1()");
?>

The message displayed is always:
this is test message=()
instead of :
this is test message=hello

is there another way of doing it aside from:
$x = $obj->t1();
die("this is $a message=$x");


Thanks in advance,
ludwig lim


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