Just PHP FUN 048.

closed_bracket_word.php

<?php
# https://www.codewars.com/kata/59000d6c13b00151720000d5 Simple Fun #215: Properly Closed Bracket Word.
function closed_bracket_word(string $word): bool {
  $x = range(ord('a'),ord('z')); $y = array_reverse($x);
  $z = array_combine($x,$y); 
  $w = array_map('ord',str_split($word));
  $w = array_map(null,$w,array_reverse($w));
  foreach($w as $v) if($z[$v[0]] != $v[1]) return false;
  return true;
}

coint_sampling.php

<?php
# https://www.codewars.com/kata/58d8f800a1111a80f400021a Statistics 101: Coin Sampling.
function sample($coin) {
  for($i = 0, $x = 0; $i < 1000000; $i++) if($coin()) $x += 1;
  echo "$x \n";
  return $x/1000000;
}

factors.php

<?php
# https://www.codewars.com/kata/58f6024e1e26ec376900004f Find Factors Down to Limit.
function factors(int $integer, int $limit): array {
  for($i = $limit, $a = []; $i <= $integer; $i ++) if (0 == $integer%$i) array_push($a, $i);
  return $a;
}

g_happy.php

<?php
# https://www.codewars.com/kata/58bcd27b7288983803000002 Simple Fun #182: Happy "g"
function g_happy(string $str): bool {
  $x = [];
  preg_match_all('/g+/',$str,$x);
  $x = array_filter(array_map('strlen',$x[0]),function($x){ return $x == 1;});
  if(empty($x)) return true;
  return false;
}

just_php_fun_048.md

Just PHP FUN 048.

• https://www.codewars.com/kata/59000d6c13b00151720000d5 Simple Fun #215: Properly Closed Bracket Word.
• https://www.codewars.com/kata/58f6024e1e26ec376900004f Find Factors Down to Limit.
• https://www.codewars.com/kata/58fd91af13b0012e8e000010 Simple Fun #203: Strange Coach.
• https://www.codewars.com/kata/58bcd27b7288983803000002 Simple Fun #182: Happy "g"
• https://www.codewars.com/kata/58d8f800a1111a80f400021a Statistics 101: Coin Sampling.

Started at 22:39 13.07.2020 Monday July.
Finished at 0:02 14.07.2020 Tuesday July. (1hr 23minutes)

strangeCoach.php

<?php
# https://www.codewars.com/kata/58fd91af13b0012e8e000010 Simple Fun #203: Strange Coach.
function strangeCoach($players){
  $ans = [];
 foreach(array_count_values(array_map(function($x){ return $x[0];},$players)) as $k=>$v) 
   if($v >= 5) array_push($ans,$k);
  if(empty($ans)) return "forfeit";
  sort($ans);
  return implode($ans);
}