PHP Exercises: Check if it is possible to add two integers to get the third integer from three given integers

Last update on April 16 2025 12:52:27 (UTC/GMT +8 hours)

46. Two Integers Sum to Third Check

Write a PHP program to check if it is possible to add two integers to get the third integer from three given integers.

Sample Solution:

PHP Code :

<?php
// Define a function that checks if any two numbers add up to the third number
function test($x, $y, $z)
{
    // Check if $x is equal to the sum of $y and $z
    // OR if $y is equal to the sum of $x and $z
    // OR if $z is equal to the sum of $x and $y
    return $x == $y + $z || $y == $x + $z || $z == $x + $y;
}

// Test the function with different sets of numbers
var_dump(test(1, 2, 3))."\n";
var_dump(test(4, 5, 6))."\n";
var_dump(test(-1, 1, 0))."\n";
?>

Explanation:

• Function Definition:
• The function test checks if any two numbers from the inputs $x, $y, and $z add up to the third number.
• Conditions Checked:
• Condition 1: Checks if $x is equal to the sum of $y and $z.
• Condition 2: Checks if $y is equal to the sum of $x and $z.
• Condition 3: Checks if $z is equal to the sum of $x and $y.
• If any of these conditions are true, the function returns true; otherwise, it returns false.

Output:

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

Visual Presentation:

Flowchart:

For more Practice: Solve these Related Problems:

• Write a PHP script to check if any two out of three given integers add up exactly to the third integer.
• Write a PHP function to iterate through combinations of three numbers and return true if a valid sum equation is found.
• Write a PHP program to use nested loops to verify if any two numbers in a triplet can be summed to equal the third.
• Write a PHP script to implement a combinatorial check for three inputs to determine if the addition of one pair results in the remaining number.

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