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1. jonradio
   Member
   Posted 2 years ago #

   In Version 2.8.x of WordPress, this worked:
   

   global $post;
   	$children = get_children("post_parent=" . $post->ID);
   	foreach ($children as $child) {
   		$p = get_page($child);
   		$t = strtolower($p->post_title);
   		//  Title points at pageID
   		$childID[$t] = $child->ID;
   	};

   But in Version 2.9, the second to last line had to be changed to = $child;

   Anyone have any information on this change?

2. Robert Chapin (miqrogroove)
   Member
   Posted 2 years ago #

   I'm using $child->ID on 2.8.x myself. I'll look into it for you ;)

3. Robert Chapin (miqrogroove)
   Member
   Posted 2 years ago #

   $child->ID seems to work fine in 2.9-RC1. Maybe it has something to do with how you use the $childID array after that block?

4. jonradio
   Member
   Posted 2 years ago #

   Thank you for your help. In 2.8.6, $child->ID gives me a number. In 2.9, $child->ID gives me NULL. And $child itself gives me the same number as 2.8.6 did for $child->ID.

   I didn't test RC1.

5. Robert Chapin (miqrogroove)
   Member
   Posted 2 years ago #

   That's pretty bizarre. And I can tell you just by looking at the diff, get_children() itself has not changed in 2.9 final.

   http://core.trac.wordpress.org/changeset?new=12415@trunk/wp-includes/post.php&old=12163@trunk/wp-includes/post.php

6. Robert Chapin (miqrogroove)
   Member
   Posted 2 years ago #

   ...

7. Robert Chapin (miqrogroove)
   Member
   Posted 2 years ago #

   ...

8. Robert Chapin (miqrogroove)
   Member
   Posted 2 years ago #

   $p = get_page($child);

   That line doesn't make any sense to me. I'm pretty sure that's causing the problem.

9. jonradio
   Member
   Posted 2 years ago #

   Thank you very much for this. I'll sit down and try and rewrite this "properly".

10. Robert Chapin (miqrogroove)
    Member
    Posted 2 years ago #

    You're welcome! (And I got the chance to test more of my future upgrades)

11. jonradio
    Member
    Posted 2 years ago #

    For the record, here is the final working (both 2.8.x and 2.9) version:
    

    function children_title2id() {
    	$children = get_children("post_type=page&post_parent=" . get_the_ID());
    	foreach ($children as $child) {
    		$t = strtolower($child->post_title);
    		//  Title points at pageID
    		$childID[$t] = $child->ID;
    	};
    	return $childID;
    };

    The missing post_type=page that miqrogroove earlier picked up on is required according to the Codex. But it is the $p = get_page($child); that was really killing it.

    It creates an array where the keys are the page titles in lower-case. And the associated value for each key is the page ID for the page.

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