PHP Exercises: Count even number of elements in a given array of integers

Last update on December 20 2024 10:19:48 (UTC/GMT +8 hours)

Write a PHP program to count even number of elements 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 named $evens with a value of 0
    $evens = 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 even (divisible by 2), increment $evens if true
        if ($nums[$i] % 2 == 0) $evens++;
    }

    // Return the count of even elements in the array
    return $evens;
 }   

// Call the 'test' function with an array [1, 5, 7, 9, 10, 12] and print the result
echo "Number of even elements: ". test([1, 5, 7, 9, 10, 12] );
?>

Sample Output:

Number of even elements: 2

Flowchart:

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