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

## 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: **

**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.

**What is the difficulty level of this exercise?**

Test your Programming skills with w3resource's quiz.

## PHP: Tips of the Day

**Returns all elements in an array except for the first one**

Example:

<?php function tips_tail($items) { return count($items) > 1 ? array_slice($items, 1) : $items; } print_r(tips_tail([1, 5, 7])); ?>

Output:

Array ( [0] => 5 [1] => 7 )

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