PHP Exercises: Check if the sum of all 5' in the array exactly 15 in a given array of integers

Last update on May 28 2025 13:04:44 (UTC/GMT +8 hours)

112. Sum of 5's Equals 15 Check

Write a PHP program to check if the sum of all 5' in the array exactly 15 in a given array of integers.

Sample Solution:

PHP Code :

<?php
// Define a function named 'test' that takes an array of numbers as a parameter
function test($nums)
 { 
    // Initialize a variable $sum with a value of 0
    $sum = 0;

    // Iterate through the elements of the array using a for loop
    for ($i = 0; $i < sizeof($nums); $i++)
    {
        // Check if the current element is equal to 5, increment $sum by 5 if true
        if ($nums[$i] == 5)
            $sum += 5;
    }

    // Return true if the sum is equal to 15, otherwise return false
    return $sum == 15;
 }   

// Use 'var_dump' to print the result of calling 'test' with different arrays
var_dump(test([1, 5, 6, 9, 10, 17]));
var_dump(test([1, 5, 5, 5, 10, 17]));
var_dump(test([1, 1, 5, 5, 5, 5]));
?>

Sample Output:

bool(false)
bool(true)
bool(false)

Flowchart:

For more Practice: Solve these Related Problems:

Write a PHP script to calculate the sum of occurrences of the number 5 in an array and return true if the sum equals 15.
Write a PHP function to count how many times 5 appears in an array and check if that count multiplied by 5 equals 15.
Write a PHP program to iterate over an array, sum only the elements that are 5, and compare the total with 15.
Write a PHP script to use array filtering to collect all 5's then sum them and check for the target sum of 15.

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PHP Code Editor:

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