Just PHP FUN 097.

just_php_fun_097.md

Just PHP FUN 097.

• https://www.codewars.com/kata/5d2d0d34bceae80027bffddb Sort Strings by Most Contiguous Vowels.

Started at 21:23 08.09.2020 Tuesday Sep.
Funished at 22:43 08.09.2020 Tuesday Sep. (1hr 20minutes)

sortStringsByVowels.php

<?php
# https://www.codewars.com/kata/5d2d0d34bceae80027bffddb Sort Strings by Most Contiguous Vowels.
function sortStringsByVowels($strings){
  $get_number = function($s){
    $matches = [];
    $found = preg_match_all('/[aeiouAEIOU]+/',$s,$matches);
    return  $found ? max(array_map('strlen',$matches[0])) : 0;
  };
  $x = array_map(fn($x) => [$x,$get_number($x)],$strings);
  $hsh = [];
    
  foreach($x as $v){
    $value = $v[0]; $number = $v[1];
    if(!isset($hsh[$number])) $hsh[$number] = [[],$number];
    array_push($hsh[$number][0],$value);
  }
  $x = array_values($hsh);
  usort($x,fn($a,$b) => $b[1] - $a[1]);
  
  $answer = [];
  
  foreach($x as $v){
      $answer = array_merge($answer,$v[0]);
  }
  return $answer;  
  
}
# Does not supports stable sort.
function sortStringsByVowels($strings){
  $get_number = function($s){
    $matches = [];
    $found = preg_match_all('/[aeiouAEIOU]+/',$s,$matches);
    return  $found ? max(array_map('strlen',$matches[0])) : 0;
  };
  $x = array_map(fn($x) => [$x,$get_number($x)],$strings);
  usort($x,fn($a,$b) => $b[1] - $a[1]);
  var_dump($strings);
  var_dump($x);
  $x = array_map(fn($x)=>$x[0],$x);
  var_dump($x);
  return $x;
}

https://stackoverflow.com/questions/4353739/preserve-key-order-stable-sort-when-sorting-with-phps-uasort