A doodle in PHP

JohnLennon.php

<?php
function word_live_as_one($imagination) {
  global $world;
  foreach ($imagination as $thought) {
    switch ($thought) {
      case 'heaven':
      case 'hell':
      case 'countries':
      case 'possessions':
        $dreamer = FALSE;
        break;
  
      default:
        $dreamer = TRUE;
    }
  
    if (in_array($thought, $world->things_to_die_for) || (in_array($thought, $world->things_to_kill_for)) {
      $dreamer = FALSE;
    }

    if (in_array($thought, $world->need_for_greed) || (in_array($thought, $world->need_for_hunger)) {
      $dreamer = FALSE;
    }
  }

  if ($dreamer == 'FALSE') {
    echo "I hope some day you'll join us";
  }
  else {
    $imagination = array(
      'people living for today',
      'people living life in peace',
      'people sharing all the world',
    );
  }

  return $imagination;
}
?>

I see no reason to unset the variables that are never set. I also think that $imagination is is not unaligned with $greed, $hunger, $possessions.

I think you should they should be unset as a function of the world living as one. So thinking this through:

I would call the top level function image, which you are then passing the things which should be imagined.

Thoughts?

On further reflection, you probably want a recursive function in some functional language. But….

xsyn++

This is very cool though