checkEmpty.php

<?php
class A {
    public function  tmp(){
        $this->sitesAdmin = array(
            0 => array(
                'idsite' => "63",
                'name' => "Nike Test",
                'main_url' => "https://dl.dropbox.com/u/57982494/Final_test_site/Final_test_site",
                'ts_created' => "2012-10-05 15:24:58",
                'ecommerce' => "0",
                'timezone' => "UTC",
                'currency' => "USD",
                'excluded_ips' => "",
                'excluded_parameters' => "",
                'group' => "",
                'feedburnerName' => NULL
            )
        );

        var_dump($this->sitesAdmin, empty($this->sitesAdmin), count($this->sitesAdmin));
    }
}

$a = new A();
$a->tmp();