PHP Exercises: Check whether three given lengths of three sides form a right triangle

Last update on May 30 2022 11:50:09 (UTC/GMT +8 hours)

PHP: Exercise-48 with Solution

Write a PHP program to check whether three given lengths (integers) of three sides form a right triangle. Print "Yes" if the given sides form a right triangle otherwise print "No".

Input:
Integers separated by a single space.
1 ≤ length of the side ≤ 1,000

Pictorial Presentation:

PHP: Check whether three given lengths of three sides form a right triangle.

Pictorial Presentation:

Sample Solution: -

PHP Code:

<?php
$a = 5;
$b = 3;
$c = 4;
$a *= $a;
$b *= $b;
$c *= $c;
if($a + $b == $c || $a + $c == $b || $b + $c == $a){
    echo "YES\n";
}
else
{
    echo "NO\n";
    }
?>

Sample Output:

YES

Flowchart:

PHP Code Editor:

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Previous: Write a PHP program to compute the digit number of sum of two given integers.
Next: Write a PHP program which solve the equation. Print the values of x, y where a, b, c, d, e and f are given.

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PHP: Tips of the Day

How to Sort Multi-dimensional Array by Value?

Try a usort, If you are still on PHP 5.2 or earlier, you'll have to define a sorting function first:

Example:

function sortByOrder($a, $b) {
    return $a['order'] - $b['order'];
}

usort($myArray, 'sortByOrder');

Starting in PHP 5.3, you can use an anonymous function:

usort($myArray, function($a, $b) {
    return $a['order'] - $b['order'];
});

And finally with PHP 7 you can use the spaceship operator:

usort($myArray, function($a, $b) {
    return $a['order'] <=> $b['order'];
});

To extend this to multi-dimensional sorting, reference the second/third sorting elements if the first is zero - best explained below. You can also use this for sorting on sub-elements.

usort($myArray, function($a, $b) {
    $retval = $a['order'] <=> $b['order'];
    if ($retval == 0) {
        $retval = $a['suborder'] <=> $b['suborder'];
        if ($retval == 0) {
            $retval = $a['details']['subsuborder'] <=> $b['details']['subsuborder'];
        }
    }
    return $retval;
});

If you need to retain key associations, use uasort() - see comparison of array sorting functions in the manual

Ref : https://bit.ly/3i77vCC