get size of an object

[quanghoc]

How to get size of an object (not class because size of a class is always the same)? Because I have an class with some dynamic array variable (and there are many of those). I need to know how big is that object over the time.

[quanghoc]

Anyone knows? Or no way?

[jeremuck]

why won't sizeof work?

you can cast it to an array of some sort.
[man]sizeof[/man]

or you can use [man]get_object_vars[/man] and then use [man]sizeof[/man]

or you can cast it to a string and get the [man]strlen[/man]

[quanghoc]

it won't work. I already tried and it always return a fixed number which I guess the class size (not object size which is dynamic).

[jeremuck]

the docs say get_object_vars only gets the ones that are there, not the fixed size.

You tried all of those things?

[quanghoc]

<?
class myclass {
var $aa;

function myfunc() {
echo "test";
}

}

$var1=new myclass();
$var1->aa[1] = 1;
echo sizeof(get_object_vars($var1))."<BR>";
$var1->aa[2] = 2;
echo sizeof(get_object_vars($var1))."<BR>";
$var1->aa[3] = "123";
echo sizeof(get_object_vars($var1))."<BR>";
?>
Look, like what you said, the code should do what it supposes to but it was not.