/*
Note the white space in the $page variable.
$page is set somewhere up here and is being concatenated upon.

These units are in bytes.
Sourced from: http://stackoverflow.com/questions/2192657/how-to-determine-the-memory-footprint-size-of-a-variable
*/

// WITHOUT WHITE SPACE: http://screencloud.net/img/screenshots/e5c9b31c4b20021082c22a551fca903c.png
                                                $start_memory = memory_get_usage();
                                                $page .= "<div class='item'><div class='row-fluid'><div class='span10 offset1'>";
                                                echo memory_get_usage() - $start_memory;
                                                echo '<br>';

// WITH WHITESPACE: http://screencloud.net/img/screenshots/e5c9b31c4b20021082c22a551fca903c.png
                                                $start_memory = memory_get_usage();
                                                $page .= "
                                                <div class='item'>
                                                    <div class='row-fluid'>
                                                        <div class='span10 offset1'>
                                                        ";
                                                echo memory_get_usage() - $start_memory;
                                                echo '<br>';