Just PHP FUN 013.

average_string.php

<?php
# 
function average_string(string $s): string {
  $meaning = [
    "zero" => 0,
    "one" => 1,
    "two" => 2,
    "three" => 3,
    "four" => 4,
    "five" => 5,
    "six" => 6,
    "seven" => 7,
    "eight" => 8,
    "nine" => 9,
  ];
  $mean2 = array_flip($meaning);
  $n = "n/a";
  
  
  echo "$s = $size \n";
  $sum = 0;
  if(0 == strlen($s)) return $n;
  $arr = explode(" ",$s);
  $size = count($arr);
  foreach($arr as $x){
    
    if(!isset($meaning[$x])) return $n;
    echo "$x => {$meaning[$x]}\n";
    $sum += $meaning[$x];
  }
  return $mean2[floor($sum/$size)];
}

just_php_fun_013.md

Just PHP FUN 013.

• https://www.codewars.com/kata/5966847f4025872c7d00015b String average.

Started at 22:14 26.09.2020 Saturday Sep.
Finished at 22:51 26.09.2020 Saturday Sep. (0hrs 43minutes)