$cate = array();

for($a=1;$a<100;$a++)
{ echo "1";
        if(!array_key_exists('cattag_'.$a.'_1_1', $_POST))
        { echo "2";
                //$w = -1;
				break;
        }
       
        for($b=1;$b<100;$b++)
        { echo "3";
                if(!array_key_exists('cattag_'.$a.'_'.$b.'_1', $_POST))
                {  echo "4";
                        //$x = -1;
						break;
                }
       
                for($c=0;$c<100;$c++)
                {  echo "5";
                        if(!array_key_exists('cattag_'.$a.'_'.$b.'_'.$c, $_POST))
                        {    echo "6";
                               // $y = -1;
							   break;
                        }
                         
                                $cate[$a][$b][] = $_POST['cattag_'.$a.'_'.$b.'_'.$c];
							
                        
                }
        }
}

echo "<br>";
echo sizeof($cate);
echo "<br>";