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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 test_bit_position($num, $pos1, $pos2) {
   $pos1--;
   $pos2--;
   $bin_num = strrev(decbin($num));
   if ($bin_num[$pos1] == $bin_num[$pos2]) {
     return "true";
   } else {
     return "false";
   }
}
echo test_bit_position(112,5,6)."\n";
?>

Sample Output: 

true

Flowchart:

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

PHP Code Editor:

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PHP: Tips of the Day

Mutates the original array to filter out the values specified

Example:

<?php
function tips_pull(&$items, ...$params)
{
  $items = array_values(array_diff($items, $params));
  return $items;
}

$items = ['x', 'y', 'z', 'x', 'y', 'z'];
print_r(tips_pull($items, 'y', 'z'));
?>

Output:

Array
(
    [0] => x
    [1] => x
)