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Matthew Harding
3,099 Pointsintroducing functions
what exactly are they asking for me to do ? I already know how the array_sum() function works but in what manner do they want it . The code below creates an array of numbers, loops through them one at a time, and sums their values. PHP actually has a native function that does this same thing: array_sum(). [The array_sum() function receives an array as its one and only argument, and it sends back the sum as the return value.] Modify the code below: remove the foreach loop and the working sum variable, replacing them with a call to the array_sum() function instead.
4 Answers
Chris Willoughby
6,792 PointsI figured out the challange. They want you to replace the for each loop with somthing smaller.
$sum = array_sum($numbers);
echo $sum;
good luck
Michael O'Malley
4,293 Points $sum = 0;
foreach($numbers as $number) {
$sum = $sum + $number;
}
echo $sum;
Does the same thing as the array_sum() function.
Remove the code above and use the array_sum() function instead (echo the array_sum() instead of $sum).
Marvin Abella
6,378 PointsI believe they want you to sum up the array using a foreach. It will be helpful if you specifically put the challenge question here or just the section.
Coy Sellers
5,848 PointsIt finally clicked for me when I looked at the first example in the actual PHP manual here.