PHP Exercises: Compute the sum of the two given integers

Last update on April 16 2025 12:52:31 (UTC/GMT +8 hours)

39. Sum with Conditional Range Return 30

Write a PHP program to compute the sum of the two given integers. If the sum is in the range 10..20 inclusive return 30.

Sample Solution:

PHP Code :

<?php
// Define a function that checks the sum of two numbers
function test($a, $b)
{
    // Check if the sum of $a and $b is between 10 and 20 (inclusive)
    // If true, return 30; otherwise, return the actual sum
    return $a + $b >= 10 && $a + $b <= 20 ? 30 : $a + $b;
}

// Test the function with different pairs of numbers
echo test(12, 17)."\n";
echo test(2, 17)."\n";
echo test(22, 17)."\n";
echo test(20, 0)."\n";
?>

Explanation:

• Function Definition:
• The test function takes two numbers, $a and $b, as inputs and checks the sum against a specific range.
• Sum Calculation and Range Check:
• It calculates the sum of $a and $b.
• If the sum is between 10 and 20 (inclusive), it returns 30.
• If the sum is outside this range, it returns the actual sum of $a and $b.

Output:

29
30
39
30

Visual Presentation:

Flowchart:

For more Practice: Solve these Related Problems:

• Write a PHP script to sum two integers and return 30 if the result falls within the inclusive range of 10 to 20; otherwise, return the original sum.
• Write a PHP function to calculate the sum of two numbers and conditionally adjust the result when the sum falls within a specific range.
• Write a PHP program to add two integers and apply a rule that outputs a fixed value of 30 when the sum is within a given boundary.
• Write a PHP script to use logical checks to override the computed sum with 30 if it meets the range criteria of 10 to 20 inclusive.

PHP Code Editor:

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