{
$var++;
}
$c = 5;
count_2($c);
echo $c;
// kết quả sẽ là 5
?>
<?php
class cha
{
public $ten_cha = "toi la cha";
public function test()
{
echo $this->ten_cha . "<br />";
}
}
class con extends cha
{
public $ten_con = 'toi la con';
public function test()
{
parent::test();
//phuong thuc test la cua class cha
echo $this->ten_con . "<br />";
}
}
$a = new con();
$a->test();
