JSON Full Calendar Paste

<?php

header('Content-Type:application/json');

if(file_exists('../../../../wp-load.php')) :
    include '../../../../wp-load.php';
else:
    include '../../../../../wp-load.php';
endif;

//$today6am = strtotime('today 6:00') + ( get_option( 'gmt_offset' ) * 3600 );

global $wpdb;

$args = array(
              'posts_per_page'  => -1,
              'orderby'         => 'post_date',
              'order'           => 'DESC',
              'post_type'       => 'course',
              'meta_key'        => '_uni_course-dates-start',
              );
$events = get_posts( $args );
$jsonevents = array();
if ($events):
global $post;
foreach ($events as $post):
setup_postdata($post);

// - custom post type variables -
$custom = get_post_custom(get_the_ID());
$sd = $custom["_uni_course-dates-start"][0];
$ed = $custom["_uni_course-dates-end"][0];

// - grab gmt for start -
$gmts = date('Y-m-d H:i:s', $sd);
//$gmts = get_gmt_from_date($gmts); // this function requires Y-m-d H:i:s
$gmts = strtotime($gmts);

// - grab gmt for end -
$gmte = date('Y-m-d H:i:s', $ed);
//$gmte = get_gmt_from_date($gmte); // this function requires Y-m-d H:i:s
$gmte = strtotime($gmte);

// - set to ISO 8601 date format -
$stime = date('c', $gmts);
$etime = date('c', $gmte);

$term = get_single_term($post->ID, 'course_locations');

    //$year = date('Y');
    //$month = date('m');

// - json items -
$jsonevents[]= array(
    'title' => $post->post_title,
    'allDay' => false, // <- true by default with FullCalendar
    'start' => $stime,
    //'end' => $etime,
    'className' => $term,
    'url' => get_permalink($post->ID)
    );

endforeach;
else :
endif;

// - fire away -
echo json_encode($jsonevents);

?>