Basic PHP

DOWENLODE & INSTALL XAMPP OR WAMPP FROM THIS LINK

XAMPP DOWENLODE LINK -https://www.apachefriends.org/download.html

WAMPP DOWENLODE LINK -https://sourceforge.net/projects/wampserver/

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<?php

echo "<h1>Hello SIP</h1>";

$a=20;

$b=10;

function add()

{

global  $a;

global  $b;

echo "<br>".($a+$b);

}

add();

$a=20;

$b=10;

function sub()

{

global  $a;

global  $b;

echo "<br>".($a-$b);

}

sub();

$a=20;

$b=10;

function mul()

{

global  $a;

global  $b;

echo "<br>".($a*$b);

}

mul();

$a=20;

$b=10;

function div()

{

global  $a;

global  $b;

echo "<br>".($a/$b);

}

div();

$a=20;

$b=10;

function moldiv()

{

global  $a;

global  $b;

echo "<br>".($a/$b);

}

moldiv()

?>

"