Just PHP FUN 023.

accum.php

<?php
# https://www.codewars.com/kata/5667e8f4e3f572a8f2000039 Mumbling.
function accum($s) {
    $ans = []; $s = strtolower($s);
    foreach(str_split($s) as $i=>$v) array_push($ans, ucfirst(str_repeat($v,$i+1)));
    return implode("-",$ans);
}

babySharkLyrics.php

<?php
# https://www.codewars.com/kata/5d076515e102162ac0dc514e Baby shark lyrics generator.
function babySharkLyrics() {
  $do = str_repeat(" doo", 6); $ans = '';
  $x = ['Baby shark','Mommy shark','Daddy shark','Grandma shark','Grandpa shark',"Let's go hunt"];
  foreach($x as $v) $ans .= str_repeat($v.",".$do."\n",3)."$v!\n";
  return $ans."Run away,…";
}

isNice.php

<?php
# https://www.codewars.com/kata/59b844528bcb7735560000a0 Nice Array.
function isNice($arr) {
  $hist = [];
  echo "Input: ".implode(", ",$arr)."\n";
  foreach($arr as $v) $hist[$v] = true;
  foreach($arr as $v){
   $a = isset($hist[$v-1]);
   $b = isset($hist[$v+1]);
   echo "Now it is $v; ".($v-1)."=".intval($a)."; ".($v+1)."=".intval($b)."; \n";
   if( !($a||$b)) return false;
  }
  if(empty($arr)) return false;
  return true;
}

just_php_fun_023.md

Just PHP FUN 023.

• https://www.codewars.com/kata/561046a9f629a8aac000001d Array comparator.
• https://www.codewars.com/kata/5d076515e102162ac0dc514e Baby shark lyrics generator.
• https://www.codewars.com/kata/59b844528bcb7735560000a0 Nice Array.
• https://www.codewars.com/kata/58ba6fece3614ba7c200017f Numerical Palindrome #1.
• https://www.codewars.com/kata/5667e8f4e3f572a8f2000039 Mumbling.

Started at 22:14 13.06.2020 Saturday.
Finished at 23:08 13.06.2020 Saturday. (0hrs 54 minutes)

match_arrays.php

<?php
# https://www.codewars.com/kata/561046a9f629a8aac000001d Array comparator.
function match_arrays(array $a, array $b): int {
  return count(array_intersect($a,$b));
}

palindrome.php

<?php
# https://www.codewars.com/kata/58ba6fece3614ba7c200017f Numerical Palindrome #1.
function palindrome($num) {
  if(!is_int($num)) return "Not valid";
  if($num < 0 ) return "Not valid";
  $x = strval($num);
  return $x == strrev($x);
}