PHP Exercises: Check two given integers, and return true if one of them is 30 or if their sum is 30

Last update on December 20 2024 10:26:15 (UTC/GMT +8 hours)

Write a PHP program to check two given integers, and return true if one of them is 30 or if their sum is 30.

Sample Solution:

PHP Code :

<?php
// Define a function named "test" that takes two parameters, $x and $y
function test($x, $y) 
{
    // Use the logical OR operator to check if $x is equal to 30, $y is equal to 30, or the sum of $x and $y is equal to 30
    return ($x == 30) || ($y == 30) || ($x + $y == 30);
}

// Use var_dump to print the result of calling test with arguments 30 and 0
var_dump(test(30, 0));

// Use var_dump to print the result of calling test with arguments 25 and 5
var_dump(test(25, 5));

// Use var_dump to print the result of calling test with arguments 20 and 30
var_dump(test(20, 30));

// Use var_dump to print the result of calling test with arguments 20 and 25
var_dump(test(20, 25));
?>

Explanation:

Function Definition:

The function test is defined with two parameters, $x and $y.

Logical Check:

The function checks if:

$x is equal to 30, or
$y is equal to 30, or
The sum of $x and $y is equal to 30.

It uses the logical OR (||) operator, meaning that if any one of these conditions is true, the function will return true. Otherwise, it returns false.

Function Calls and Output:

First Call: var_dump(test(30, 0));

Since $x is 30, it returns true.

Second Call: var_dump(test(25, 5));

The sum of $x and $y is 30 (25 + 5), so it returns true.

Third Call: var_dump(test(20, 30));

Since $y is 30, it returns true.

Fourth Call: var_dump(test(20, 25));

None of the conditions are met, so it returns false.

Output:

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

Visual Presentation:

PHP Basic Algorithm Exercises: Check two given integers, and return true if one of them is 30 or if their sum is 30.

Flowchart:

PHP Code Editor:

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