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PHP Build a Simple PHP Application Working With Functions Introducing User-Defined Functions

Write the code inside this mimic_array_sum() function. That code should add up all individual numbers in the array and r

Please Help

palindromic_primes.php
<?php 

function mimic_array_sum($array) {

    $count=0;
foreach($array as $element) {
    $count=$count + 1;

}
  return $count;
}
$palindromic_primes = array(11, 757, 16361);

?>

1 Answer

Hi Tinashe,

You are very close with your code! Please note that you must use the $element contained within the array towards the total sum. This $element is gathered from the foreach loop and is the value at each index of the array.

Your goal is to add each number in the array together, so your $count variable should be set equal to the previous total plus the new $element in the array until it is done instead of only adding 1 to it each time.

I changed $count to $sum because it makes more sense in this situation:

<?php 

function mimic_array_sum($array) { 
  $sum = 0;
  foreach ($array as $element) {
    //set the sum equal to its previous amount plus the new number in the array
    //this provides a running total of all numbers in the array
    $sum = $sum + $element;
  }
  return $sum;
}

$palindromic_primes = array(11, 757, 16361);

?>