PHP error in Magpie RSS feed export

[jsixpack]

Using Wordpress 2.7.1

In the apache error log are many occurrences of these two lines:

Bad arguments. in /var/www/.../wp-includes/rss.php on line 175,
The first argument, 'map_attrs', should be either NULL or a valid callback

The problem appears to be a simple coding error: the callback function should be called as array reference, array(object, user_func).

This patch solves the problem (against trunk, rev. 10641):

Index: rss.php
===================================================================
--- rss.php	(revision 10641)
+++ rss.php	(working copy)
@@ -170,7 +170,7 @@
 		{
 			// if tags are inlined, then flatten
 			$attrs_str = join(' ',
-					array_map('map_attrs',
+					array_map(array($this, 'map_attrs'),
 					array_keys($attrs),
 					array_values($attrs) ) );

[vladimir_kolesnikov]

Erm...

Should be array_map(&$this, 'map_attrs') - note ampersand in front of this.

[DD32]

Note that as of 2.8, WordPress includes SimplePie, MagPie is no longer supported specifically.

This sounds like something that should be submitted upstream, however, I'm not too sure on if that support still even exists (I don't think so)

Might as well get this commited for those who end up using it, with the note that Magpie is dead.

[Denis-de-Bernardy]

nod. I figured many plugins are still using it, and will continue to use it, for a very long time.

[ryan]

(In [11016]) Fix PHP error in magpie. Props jsixpack. fixes #9225