Humanizes a list, in the form of an array, by adding commas and the word "and". No Oxford commas, because fuck you.

humanize.php

<?php
function humanize($array) {
  while(count($array) > 0) {
    $output .= array_pop($array);
    if(count($array) > 1) {
      $output .= ', ';
    } elseif(count($array) > 0) {
      $output .= ' and ';
    }
  }
  echo $output;
}
?>