Processing JSON decode to use in get_posts() - php

Question

I have been struggling for a couple days with trying to use the data in a custom field to return posts. Here is my function that I have in functions.php. I am able to return my posts, except that they aren't limited to the ones defined in the $json variable. I can decode the json and return the array...but I can't seem to convert it in such a way that it fills in my array properly for the "posts__in" in the $dishes_arg.
Can anyone help me identify what I am doing wrong?
add_action ('woo_loop_before', 'hgf_home_menu');
function hgf_home_menu () {
if (is_home() || is_front_page()) {
wp_reset_query();
global $posts;
$menu_args = array(
'post_type'=>'single_menu',
'posts_per_page' => 1,
'meta_key' => 'orderby_date',
'meta_query' => array(
'relation' => 'AND',
array(
'key' => 'orderby_date', // Order-By Date field is upcoming
'value' => date("Y-m-d"),
'compare' => '>='
),
array(
'key' => 'orderby_date', // Order-By Date isn't more than two weeks out
'value' => date("Y-m-d", strtotime( "+2 weeks")),
'compare' => '<='
)
),
);
// Get menu that meets criteria
$menus = new WP_Query( $menu_args );
// Show menu that meets criteria
if ( $menus->have_posts() ) {
while ( $menus->have_posts() ) {
$menus->the_post();
}
wp_reset_postdata();
// Get the menu's product/post listing
$json = '[{"id":"435"},{"id":"527"},{"id":"563"},{"id":"568"}]';
$array = json_decode($json);
$include = array();
foreach($array as $a) {
$include[] = $a->ID;
}
$args = array(
'posts_per_page' => -1,
'include' => $include);
$posts = get_posts($args);
$dish_args = array(
'post_type' => 'product',
'post__in' => $posts,
);
// Get dishes in menu listing
$dishes = get_posts( $dish_args );
if ($dishes) {
foreach ($dishes as $dish) {
}
}
} else { // no posts found }
/* Restore original Post Data */
wp_reset_postdata();
}
}

Answer 1

You jSon property is id not ID
$include[] = $a->ID;
Should be
$include[] = $a->ID;
Where/why is there jSon here? Is this coming from something else.
Otherwise that could just be a simple delimitated list or even a normal PHP array.

Answer 2

I figured it out...turns out I just had to cut out a bunch of code that was getting in the way: $include = array() ... $args = array() ... $dish_args = array() ... $dishes = get_posts(). Here is the corrected portion:
$json = '[{"id":"435"},{"id":"527"},{"id":"563"},{"id":"568"}]';
$dishes = json_decode($json);
if ($dishes) {
foreach ($dishes as $dish) {
// Echo titles and permalinks
}
}