PHP Functions
<html>
<head>
<title>PHP Functions</title>
</head>
<body>
<?php
$no1=10;
$no2=20;
function display()
{
echo "<br> Hii now we will se the functions";
}
//Parameterless function
function add()
{
$a1=5;
$a2=6;
$result=$a1+$a2;
echo "<br>Addition is = $result";
}
//Parameterised function
function sub($a1,$a2)
{
$res=$a1-$a2;
echo "<br>Substraction is = $res";
}
//returning function
function mul($a1,$a2)
{
$res=$a1*$a2;
return $res;
}
//function calling
display();
add();
sub($no1,$no2);
$res_new=mul($no1,$no2);
echo "<br>Multiplication is = $res_new";
?>
</body>
</html>
OUTPUT :
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