w3resource

PHP Exercises: Check which number nearest to the value 100 among two given integers

PHP Basic Algorithm: Exercise-19 with Solution

Write a PHP program to check which number nearest to the value 100 among two given integers. Return 0 if the two numbers are equal.

Sample Solution:

PHP Code :

<?php
function test($x, $y) 
{
   $n = 100;
   $val = abs($x - $n);
   $val2 = abs($y - $n);
   return $val == $val2 ? 0 : ($val < $val2 ? $x : $y);
}

echo test(78, 95)."\n";
echo test(95, 95)."\n";
echo test(99, 70)."\n";

Sample Output:

95
0
99

Pictorial Presentation:

PHP Basic Algorithm Exercises: Check which number nearest to the value 100 among two given integers.
PHP Basic Algorithm Exercises: Check which number nearest to the value 100 among two given integers.

Flowchart:

Flowchart: Check which number nearest to the value 100 among two given integers.

PHP Code Editor:

Contribute your code and comments through Disqus.

Previous: Write a PHP program to check the largest number among three given integers.
Next: Write a PHP program to check whether two given integers are in the range 40..50 inclusive, or they are both in the range 50..60 inclusive.

What is the difficulty level of this exercise?



PHP: Tips of the Day

$_REQUEST: This SuperGlobal Variable is used to collect data submitted by a HTML Form

Example:

This code save in a php file and run in the browser.

<!DOCTYPE html> 
<html> 
<body> 
  
<form method="post" action="<?php echo $_SERVER['PHP_SELF'];?>"> 
 NAME: <input type="text" name="user"> 
 <button type="submit">SUBMIT</button> 
</form> 
<?php
if ($_SERVER["REQUEST_METHOD"] == "POST") { 
    $name = htmlspecialchars($_REQUEST['user']); 
    if(empty($name)){ 
        echo "Name is empty"; 
    } else { 
        echo $name; 
    } 
} 
?> 
</body> 
</html> 

Output:

Owen