Just PHP FUN 029.

find_duplicates.php

<?php
# https://www.codewars.com/kata/5558cc216a7a231ac9000022 Find Duplicates.
function duplicates($arr) {
  echo implode(",",$arr)."\n";
  $h = []; $ans = [];
  foreach($arr as $v){
    $key = key_($v);
    if(!isset($h[$key])) $h[$key] = 0;
    $h[$key] += 1;
    if(2 == $h[$key]) array_push($ans,$v);
  }
  return $ans;
  
}
function key_($v){
  return strval($v).gettype($v);
}

generate_shape.php

<?php
# https://www.codewars.com/kata/59a96d71dbe3b06c0200009c Build a square.
function generateShape($int) {
   return trim(str_repeat(str_repeat('+',$int)."\n", $int));
}

getCount.php

<?php
# https://www.codewars.com/kata/54ff3102c1bad923760001f3 Vowel Count.
function getCount($str) {
  return preg_match_all('/[aeiou]/',$str);
}

just_php_fun_029.md

Just PHP FUN 029.

• https://www.codewars.com/kata/59a96d71dbe3b06c0200009c Build a square.
• https://www.codewars.com/kata/5558cc216a7a231ac9000022 Find Duplicates.
• https://www.codewars.com/kata/586f6741c66d18c22800010a Sum of a sequence.
• https://www.codewars.com/kata/54ff3102c1bad923760001f3 Vowel Count.
• https://www.codewars.com/kata/5822d89270ca28c85c0000f3 String Scramble.

Started at 21:35 20.06.2020 Saturday June.
Finished at 22:47 20.06.2020 Saturday June. (1hr 12minutes)

scramble.php

<?php
# https://www.codewars.com/kata/5822d89270ca28c85c0000f3 String Scramble.
function scramble($str,$arr){
  $ans = array_combine($arr,str_split($str));
  ksort($ans);
  return implode($ans);
}
# Dzienny, parezzz, Yuno_Gassai
# -----------------------------------------------------------------------
function scramble($str,$arr){
  $ans = array_fill(0,count($arr),"");
  foreach($arr as $k => $v) $ans[$v] = $str[$k];
  return implode($ans);
}

sequence_sum.php

<?php
# https://www.codewars.com/kata/586f6741c66d18c22800010a Sum of a sequence.
function sequence_sum(int $begin, int $end, int $step): int {
  echo "$begin, $end, $step \n";
  if($begin > $end) return 0;
  echo "Count: \n";
  if($step+$begin > $end) return $begin;
  $ans =  array_sum(range($begin,$end,$step));
  echo "$ans \n";
  return $ans;
}