<?php
    function _handle_for($params, $outcomes, $environment)
    {
        list($assignments, $iterator) = explode(" in ", $params, 2);
        
        $assignments = TrimArray(explode(",", $assignments));
        $iterator = $environment[str_replace("%", "", trim($iterator))];
        
        if (count($assignments) == 1)
        {
            foreach ($iterator as $val)
            {
                $parsed .= str_replace("%".$assignments[0]."%", $val, $outcomes[true]);
            }
        }
        else
        {
            $keys = array_keys($iterator);
            
            $size = 0;
            foreach ($iterator as $val)
            {
                if (count($val) > $size)
                {
                    $size = count($val);
                }
            }
            
            for ($i = 0; $i <= $size; $i++)
            {
                $iteration = $outcomes[true];
                for ($j = 0; $j <= count($assignments); $j++)
                {
                    $iteration = str_replace("%".$assignments[$j]."%", $iterator[$keys[$j]][$i], $iteration);
                }
                
                $parsed .= $iteration;
            }
        }
        
        return !$parsed ? $outcomes[false] : $parsed;
    }
?>