the value of a is 3.
the value of b is 4.
the value of a+ b is7.
type c is integer
isnot c integer = 1
isset($c) = 1
درود بر شما
Array ( [0] => 1 [1] => 2 [2] => 3 [3] => 4 [4] => 7 [5] => 8 ) 

Array
(
    [0] => 1
    [1] => 2
    [2] => 3
    [3] => 4
    [4] => 7
    [5] => 8
)


string(20) "درود بر شما"

$a =4
$i =4
$g.$h=masoud nikkar

.=masoud/
pi*2=  6.28
23:39:40
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