Just PHP FUN 021.

cube_odd.php

<?php
# https://www.codewars.com/kata/580dda86c40fa6c45f00028a Sum of Odd Cubed Numbers.
function cube_odd($a) {
 $answer = 0;
 foreach($a as $v){
   if(!is_numeric($v)) return NULL;
   if(0 != abs($v**3)%2) $answer += $v**3;
 }
  return $answer;
}

just_php_fun_021.md

Just PHP FUN 021.

• https://www.codewars.com/kata/57f22b0f1b5432ff09001cab Well of Ideas - Harder Version.
• https://www.codewars.com/kata/562f91ff6a8b77dfe900006e Going to the cinema.
• https://www.codewars.com/kata/580dda86c40fa6c45f00028a Sum of Odd Cubed Numbers.
• https://www.codewars.com/kata/58f6f87a55d759439b000073 Negation of a Value.
• https://www.codewars.com/kata/56541980fa08ab47a0000040 Printer Errors.

Started at 11.06.2020 17:43 Thurdday June.
Finishd at 11.06.2020 19:50 Thursday June. (2hrs 7 minutes)

movie.php

<?php
# https://www.codewars.com/kata/562f91ff6a8b77dfe900006e Going to the cinema.
function movie($c, $t, $pr) {
 $a = 0;
 $b = $c;
 for($i = 1; ceil($b) >= $a; $i++){
   $a += $t;
   $b += $t * pow($pr,$i);
   //echo "$i a=$a b=$b \n";
 }
 return $i-1;
}

negationValue.php

<?php
# https://www.codewars.com/kata/58f6f87a55d759439b000073 Negation of a Value.
function negationValue($str, $val) {
  return 1 == strlen($str)%2 ? ! $val : $val;
}

printerError.php

<?php
# https://www.codewars.com/kata/56541980fa08ab47a0000040 Printer Errors.
function printerError($s) {
    return intval(preg_match_all('/[^a-m]/',$s))."/".strlen($s);
}

well.php

<?php
# https://www.codewars.com/kata/57f22b0f1b5432ff09001cab Well of Ideas - Harder Version.
function well($arr)
{
  $sum = 0;
  array_walk_recursive($arr,function($x) use(&$sum){
   if('good' == strtolower($x)) $sum += 1;
  });
  if( 0 >= $sum) return 'Fail!';
  if(2 >= $sum ) return 'Publish!';
  return 'I smell a series!';
  
}