PHP Exercises: Find the larger from two given integers

PHP Basic Algorithm: Exercise-51 with Solution

Write a PHP program to find the larger from two given integers. However if the two integers have the same remainder when divided by 7, then the return the smaller integer. If the two integers are the same, return 0.

Sample Solution:

PHP Code :

<?php
// Define a function named 'test' that compares two numbers and returns the result
function test($x, $y)
{
    // Check if $x is equal to $y
    if ($x == $y)
    {
        // Return 0 if $x is equal to $y
        return 0;
    }
    // Check if $x is not equal to $y and satisfies another condition
    else if (($x % 7 == $y % 7 && $x < $y) || $x > $y)
    {
        // Return $x if the condition is met
        return $x;
    }
    // If none of the above conditions are met
    else
    {
        // Return $y
        return $y;
    }
}

// Test the 'test' function with different input values and display the results
echo test(11, 21)."\n";
echo test(11, 20)."\n";
echo test(10, 10)."\n";
?>

Explanation:

• Function Definition:
• The function test compares two numbers, $x and $y, and returns a result based on specific conditions.
• Conditions and Logic:
• Condition 1: If $x is equal to $y, it returns 0.
• Condition 2: If $x is not equal to $y, it checks:
• If $x and $y have the same remainder when divided by 7 ($x % 7 == $y % 7) and $x is less than $y, or if $x is greater than $y, then it returns $x.
• Condition 3: If none of the above conditions are met, it returns $y.

Output:

21
20
0

Flowchart:

PHP Code Editor:

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