PHP Exercises: Check whether two given integers are in the range 40..50 inclusive

PHP Basic Algorithm: Exercise-20 with Solution

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.

Sample Solution:

PHP Code :

<?php
// Define a function that checks if a point is within one of two rectangular regions
function test($x, $y) 
{
    // Check if the point is within the first rectangular region
    $condition1 = ($x >= 40 && $x <= 50 && $y >= 40 && $y <= 50);
    
    // Check if the point is within the second rectangular region
    $condition2 = ($x >= 50 && $x <= 60 && $y >= 50 && $y <= 60);
    
    // Return true if the point is within either region, otherwise false
    return $condition1 || $condition2;
}

// Test the function with different sets of coordinates
var_dump(test(78, 95));
var_dump(test(25, 35));
var_dump(test(40, 50));
var_dump(test(55, 60));
?>

Explanation:

• Function Definition:
• The test function takes two parameters, $x and $y, representing the coordinates of a point.
• Region Checks:
• First Rectangle (condition1): Checks if the point is within the rectangle bounded by x = 40 to 50 and y = 40 to 50.
• Second Rectangle (condition2): Checks if the point is within the rectangle bounded by x = 50 to 60 and y = 50 to 60.
• Return Value:
• The function returns true if the point lies within either of the two rectangles; otherwise, it returns false.
• Function Calls and Results:
• First Call: test(78, 95) returns false as (78, 95) is outside both regions.
• Second Call: test(25, 35) returns false as (25, 35) is outside both regions.
• Third Call: test(40, 50) returns true as (40, 50) is within the first region.
• Fourth Call: test(55, 60) returns true as (55, 60) is within the second region.

Output:

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

Flowchart:

PHP Code Editor:

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