Page 94 - Open Soource Technologies 304.indd
P. 94
Web Technologies-I
Notes </head>
<body>
<?php
function add_subt($val1, $val2){
$add = $val1 + $val2;
$subt = $val1 - $val2;
return $add;
}
?>
</body>
</html>
This function will take the two values we give it, it will do both addition and subtraction, and
right now it is going to return addition. Subtraction will just get lost like nothing ever happened.
So we cannot return more than once so we have to choose. But what if we want both?
Array is going to be our friendly solution here. Let’s see how array can help us.
Example:
<html>
<head>
<title>Writing Functions In PHP Return Values</title>
</head>
<body>
<?php
function add_subt($val1, $val2){
$add = $val1 + $val2;
$subt = $val1 - $val2;
$result = array($add, $subt);
return $result;
}
$result_array = add_subt(10,5);
echo “Add: “ . $result_array[0] . “<br>”;
echo “Subt: “ . $result_array[1] . “<br>”;
?>
</body>
</html>
Output: Add: 15
Output: Subt: 5
88 LOVELY PROFESSIONAL UNIVERSITY
