Just PHP FUN 062.

any_match.php

<?php
# https://www.codewars.com/kata/581e50555f59405743001813 Fun with lists: anyMatch + allMatch.
function any_match($head, $p) {
  while($head){
    if($p($head->data)) return true;
    $head = $head->next;
  }
  return false;
}
function all_match($head, $p) {
   while($head){
    if(!$p($head->data)) return false;
    $head = $head->next;
  }
  return true;
}

count_languages.php

<?php
# https://www.codewars.com/kata/5828713ed04efde70e000346 Coding Meetup #5 - Higher-Order Functions Series - Prepare the count of languages.
function count_languages($a) {
  return array_count_values(array_column($a,'language'));
}

just_php_fun_062.md

Just PHP FUN 062.

• https://www.codewars.com/kata/5828713ed04efde70e000346 Coding Meetup #5 - Higher-Order Functions Series - Prepare the count of languages.
• https://www.codewars.com/kata/582609930626631a9600003e Median fun fun.
• https://www.codewars.com/kata/581e50555f59405743001813 Fun with lists: anyMatch + allMatch.
• https://www.codewars.com/kata/581c867a33b9fe732e000076 Fun with lists: lastIndexOf.
• https://www.codewars.com/kata/5806c2f897dba05dd900004c N-Dimensional Vector Magnitude.

Started at 16:27 29.07.2020 Wednesday July.
Finished at 18:42 29.07.2020 Wednesday July. (2hrs 15minutes)

last_index_of.php

<?php
# https://www.codewars.com/kata/581c867a33b9fe732e000076 Fun with lists: lastIndexOf.
function last_index_of($head, $value) {
  $index = -1; 
  for($i=0; $head ; $i+=1, $head = $head->next) if($head->data === $value) $index = $i;
  return $index;
}

magnitude.php

<?php
# https://www.codewars.com/kata/5806c2f897dba05dd900004c N-Dimensional Vector Magnitude.
function magnitude($vector) {
  return sqrt(array_sum(array_map(fn($x)=>pow($x,2),$vector)));
}

median.php

<?php
# https://www.codewars.com/kata/582609930626631a9600003e Median fun fun.
function median($a) {
  if(empty($a)) return null;
  sort($a); $size =  count($a);  $hlf = floor($size/2);
  return 1 == $size%2 ? $a[$hlf] : ($a[$hlf-1] + $a[$hlf])/2;
}

<?php
# https://www.codewars.com/kata/5552101f47fc5178b1000050 Playing with digits
function digPow($n, $p) {
  $x1 = 0;
  foreach(str_split(strval($n)) as $v){ $x1 += pow($v,$p); $p += 1;}
  if(0 !== $x1%$n) return -1;
  return $x1/$n;
}