"Fatal error: Uncaught DivisionByZeroError: Division by zero" but the variable has been added the value

Question

i make 2 arrays in PHP and i added value in array here

$num_a = array(2,4);
$num_b = array(8,12);

i make a conditional for calculate total value in array like this using foreach loop like this, i declared the total = 0 so that there are no random numbers in it

    $total_a = 0;
    $total_b = 0;
    foreach($num_a as $key => $a){
        $total_a += $a;
        $total_b += $num_b;
    }

so i check the result but it's have an error

$result = $total_a/$total_b;

the error is : Fatal error: Uncaught DivisionByZeroError: Division by zero in line 52
i know the error because it's cannot doing operation zero in value variable, but here i have fill the value using foreach loop, so how it can be? and how to solve this, thank you...

`$total_a = 0;` and then `foreach($total_a as ...)` makes no sense, you can not "iterate" over an integer. — CBroe, Jun 30 '22 at 08:26
compare type-juggling , also this error is easy to debug, see the linked Q&A material. — hakre, Jun 30 '22 at 08:41
@AlzildanAR check these: https://3v4l.org/h1X04 And https://3v4l.org/Hia9M — Alive to die - Anant, Jun 30 '22 at 08:42
You don't need a loop here btw (look at that code, it's generating a nested array for `$total_b`) you can instead do `$result = array_sum($num_a) / array_sum($num_b)` - but you need to account for `array_sum($num_b)` being zero first. — AD7six, Jun 30 '22 at 08:43

score 0 · Answer 1 · answered Jun 30 '22 at 08:33

0

You should replace

$total_b += $num_b;

by

$total_b += $num_b[$key];

answered Jun 30 '22 at 08:33

Fravel

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this is more of a comment than and answer, leaving a pointer to a potential typo by the original author (the answer is to not make typos which is too broad for this sites scope). – hakre Jun 30 '22 at 08:47

"Fatal error: Uncaught DivisionByZeroError: Division by zero" but the variable has been added the value

1 Answers1