Default MySQL Storage Engine ?

Starting from MySQL 5.5.5, the default storage engine for new tables is InnoDB .

convert string into array

$str = "Hello Friend";
$arr1 = str_split($str);$arr2 = str_split($str, 3);
print_r($arr1);print_r($arr2);
?>

The above example will output:

Array
(
    [0] => H
    [1] => e
    [2] => l
    [3] => l
    [4] => o
    [5] =>
    [6] => F
    [7] => r
    [8] => i
    [9] => e
    [10] => n
    [11] => d
)

Array
(
    [0] => Hel
    [1] => lo
    [2] => Fri
    [3] => end
)

what is Encapsulation

Encapsulation: - wrapping of data in single unit. also we can say hiding the information of essential details. Example: You have a mobile phone.... there it some interface which helps u to interact with cell phone and u can uses the services of mobile phone. But the actually working in cell phone is hide. u don't know how it works internally.

Encapsulation:-- Information hiding.
Abstraction:-- Implementation hiding.