If statement return functions

Question

 function isEqual($number1, $number2, $sum){

$total = $number1 + $number2;
    if ($total = $sum){
        return true;
    }
    else {
        return false;
    }
}

if (isEqual(5,5,8)){
echo 'Sum!';
}
else {
    echo 'No sum!';
    }

PHP

My homework assignment says the if-clause is supposed to be just like that. So when $total is NOT equal to $sum it's supposed to say: No sum!.

The thing is I shouldn't change the if, I have to change something in my function because it's always saying 'Sum!' right now.

Can someone help me with this? It's not supposed to be difficult but I can't find it on google.

I've no idea what I am doing :P it 's solved by now thanks everybody! — Danny Hoeve
– Danny Hoeve, Commented Oct 25, 2013 at 13:20

ant · Accepted Answer · 2013-10-25 13:18:17Z

5

Try $total == $sum instead of $total = $sum.

'=' is assignment and '==' is comparation

answered Oct 25, 2013 at 13:18

ant

1,1373 gold badges12 silver badges24 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

immortal · Accepted Answer · 2013-10-25 13:18:30Z

1

You used $total = $sum instead of $total == $sum and therefore made an assignment rather than a comparison.

The value of an assignment expression is the value of the assigned value so it will always be true unless the assigned value is 0.

answered Oct 25, 2013 at 13:18

immortal

3,19822 silver badges39 bronze badges

Comments

pscuderi · Accepted Answer · 2013-10-25 13:18:34Z

1

It appears that you're using the assignment operator ("=") in your conditional (if statement).

Try using the equality ("==", or double equals) operator to test for equality.

answered Oct 25, 2013 at 13:18

pscuderi

1,56412 silver badges14 bronze badges

Collectives™ on Stack Overflow

If statement return functions

3 Answers 3

Comments

Comments

Comments

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

Comments

Comments

Comments

Related