Question

How to remove continued repeated digits in a given number with PHP

Answer 1

function removeRepeatedDigits($n) {
    $previous_digit = $n % 10;
    $tens_hundreds_thousands_and_more = 10;
    $result = $previous_digit;
    
    while ($n != 0) {
        $current_digit = $n % 10;
        if ($current_digit != $previous_digit) {
            $result += $current_digit * $tens_hundreds_thousands_and_more;
            $previous_digit = $current_digit;
            $tens_hundreds_thousands_and_more *= 10;
        }
        $n = $n / 10;
    }
    return $result;
}
        
$n = 9511127222213333;
$n = removeRepeatedDigits($n);
echo $n;




/*
run:

95127213

*/

 

70+ SQL courses for beginners and professionals