PHP Exercises: Check if the bits of the two given positions of a number are same or not

PHP: Exercise-34 with Solution

Write a PHP program to check if the bits of the two given positions of a number are same or not.

112 - > 01110000
Test 2nd and 3rd position
Result: True
Test 4th and 5th position
Result: False

Sample Solution:

PHP Code:

<?php
// Function to test if bits at two specified positions are equal
function test_bit_position($num, $pos1, $pos2) {
    // Adjust positions to start from 0 (as arrays in PHP are 0-indexed)
    $pos1--;
    $pos2--;
    
    // Convert the decimal number to a binary string and reverse it
    $bin_num = strrev(decbin($num));

    // Check if the bits at the specified positions are equal
    if ($bin_num[$pos1] == $bin_num[$pos2]) {
        return "true";
    } else {
        return "false";
    }
}

// Test case
echo test_bit_position(112, 5, 6) . "\n";

?>

Sample Output:

true

Flowchart:

PHP Code Editor:

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