On Mon, 2004-08-23 at 20:54, John Holmes wrote:
> [EMAIL PROTECTED] wrote:
> > hi,
> > What is best method(if it's possible) to count how many times an object is
> > instanced in one time script call?
> > I means that if i have a class named "Test", i what to know how many times she's
> > called, how many copies exists etc. The idea is for monitoring in the way to
> > optimizing the code.
> > 
> > The method get_declared_classes() only shows only the classes included/required.
> 
> There's no predefined variable or method for determining this, that I'm 
> aware of, short of counting how many "new Test" lines you have.
> 
> You could write a wrapper class for Test that kept count of the 
> instances and returned a new object upon request...

In PHP5:

<?php

class Foo
{
    static $instances = 0;

    function __construct()
    {
        Foo::$instances++; 
    }

    function __destruct()
    {
        Foo::$instances--;
    }

    static function getNumInstances()
    {
        return Foo::$instances;
    }
}


$foo = new Foo();
$fee = new Foo();

echo 'Count: '.Foo::getNumInstances()."\n";

unset( $foo );

echo 'Count: '.Foo::getNumInstances()."\n";

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