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###### MIHA W.LEE

**PHP Development**Techdegree Graduate 25,452 Points

# PHP foreach

$numbers = array(1,2,3,4); $total = count($numbers); $sum = 0; $loop = 0;

foreach($numbers as $number) { $loop = $loop + 1; if ($loop < $total) { $sum = $sum + $number; } }

echo $sum;

I just took the quiz right here, I think the result should be 10, but why the result is 6?

Hope someone can tell me the detail, thank you so much!

###### MIHA W.LEE

**PHP Development**Techdegree Graduate 25,452 Points

Thank you for your help. So, what if there is no $loop variable at here, then there is only one value will pass to the $sum variable?

## Justin Barrett

27,243 Points## Justin Barrett

27,243 Pointsin your pass: //first pass, loop = 1, if(1 < 4){sum = 0 + 1}, sum = 1 //second pass loop = 2, if(2 < 4) {sum = 2+2;}, sum = 3 //third pass loop = 3, if(3 < 4), {sum = 3+3;}, sum = 6 //fourth pass loop = 4, if(4 < 4), false, sum still equals 6

if you were to change to if ($loop <= $total), then the fourth pass would be true and your sum would equal 10.

//revised fourth pass loop = 4, if(4 <= 4), {sum = 6+4;}, sum = 10