Just PHP FUN 086.

just_php_fun_086.md

Just PHP FUN 086.

• https://www.codewars.com/kata/58e2708f9bd67fee17000080 Numerical Palindrome #3.5.

Started at 22:04 at 26.08.2020 Wednesday Aug.
Finished at 22:35 at 26.08.2020 Wendesday Aug. (0hrs 31minute)

palindrome.php

<?php
# https://www.codewars.com/kata/58e2708f9bd67fee17000080 Numerical Palindrome #3.5.
function palindrome($num) {
  if(!(is_int($num) && 0 <= $num)) return "Not valid";
  $str = strval($num); $size = strlen($str);
  $array = [];
  for($i = 0; $i < $size; $i += 1)
  for($j = 1; $j <= $size-$i; $j+=1){
    $tmp = substr($str,$i,$j);
    $x = intval($tmp); $z = intval(strrev($tmp)); 
    if(strval($x) == strval($z) && $x > 10 && '0' != $tmp[0]) {
      array_push($array,$x);
    }
  }
  $array = array_unique($array); sort($array);
  if(empty($array)) return "No palindromes found";
  return $array;
}