Дмитрий Кравченко

<?php

class p {
	
	public $name = 'p';
	
	function getname(){
		return $this->name;	
	}
}

class c1 extends p {
	public $name = 'c1';	
}
class c2 extends p {
	public $name = 'c2';	
}

$p = new p;
$c1 = new c1;
$c2 = new c2;
echo $p->getname();
echo $c1->getname();
echo $c2->getname();

public static function valid($value, $type)
    {
        if ($type == 'float')
        {
            if($value != floatval($value)) return null;
        }
        else if ($type == 'int' || $type == 'table')
        {
            return intval($value);
        }
        else
            return $value;
    }