[Resolved] Empty array when I query related posts using toolset_get_related_posts

[Author]

Posts

[HashimW3633]

I am trying to: Output a list of post IDs. I have an "event" post type with a many to one relationship with "pages".

I created a new page and associated 2 events with it.

I expected to see: The number of related "events" and a list of the IDs

Instead, I got: "2Array"

Here's the code I'm using in my page.php template

$listChildEvents = toolset_get_related_posts(
get_the_ID(),
'page-events',
'parent',
100,
0,
array(),
'post_id',
'child',
null,
ASC,
true,
$countPosts
);
echo $countPosts; // output is "2"
echo $listChildEvents; // output is "Array"

[HashimW3633]

Another thing - when I add and remove "events" the $countPosts variable properly outputs the correct number.

[HashimW3633]

I changed it to a many-to-many relationship, and re-connected the events, but I still get:

"2Array"

[Christian Cox]

echo $listChildEvents; // output is "Array"

This is the standard behavior in PHP. The toolset_get_related_posts return value is an array of WP post objects, and when you try to echo an Array directly in PHP you get "Array". If you want to inspect the array values from the front-end, you can do something this:

echo print_r($listChildEvents, true);
// or write to the log file:
error_log(print_r($listChildEvents, true));

If you want to loop over those post objects and do something with them, you can use a foreach loop like this:

foreach( $listChildEvents as $listChild ) {
  echo print_r($listChild, true);
}

More information about Array syntax and debugging in WordPress:
http://php.net/manual/en/language.types.array.php
https://codex.wordpress.org/Debugging_in_WordPress

[HashimW3633]

Very helpful, thanks. I understand what to do with it now