Use of undefined constant num - assumed 'num' in C:\xampp\htdocs\Demo\practice4.php on line 12

Question

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Practice4</title>
</head>
<body>
    <?php
            function calculate($number1,$number2)
            {
                $mult=$number1*$number2;
                define(num,$mult);
                return num;
            }
        echo "Number calculated is " . calculate(9,9);

?>

Please help me out with this.I am newbie to php.May i know can i return a Constant from a function if yes,Why am i getting Use of undefined constant num - assumed 'num' .

score 0 · Answer 1 · answered Jun 23 '16 at 17:19

0

The first argument of define() is a string. You need to quote num:

define('num',$mult);

define() definition

answered Jun 23 '16 at 17:19

aynber

22,380
8
50
63

score 0 · Accepted Answer · answered Jun 23 '16 at 17:19

0

If you check the manual, you will know that you have incorrectly used the syntax.

Check the following code:

function calculate($number1,$number2)
{
    $mult=$number1*$number2;
    define('num',$mult);
    return num;
}

answered Jun 23 '16 at 17:19

Sujeet Sinha

2,417
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27

Use of undefined constant num - assumed 'num' in C:\xampp\htdocs\Demo\practice4.php on line 12

2 Answers2