[RESOLVED] How do you sort an object array by an object property?

[ppowell]

		array_walk($result, create_function('$a, $b', 'return (strtolower($a->{$section . "_name"}) < strtolower($b->{$section . "_name"}));'), $section); 

I thought this would sort an object array by the property {$section . "name"} (the variable $section has multiple values, hence, the object array might be "image_name", "video_name", "audio_name", "anything_name", but it will definitely exist, by whatever name comprises ${section}name, in the object property within the object that makes up each array element), however, the sorting never takes place.

How can I ensure that the object array is always sorted by $obj->{$section . "_name"}?

Thanx
Phil

[laserlight]

I think you are looking to use [man]usort/man instead of array_walk().

[ppowell]

usort() doesn't take the third parameter I need "$section", how do I use it?

[ppowell]

Got it!

		@usort($result, create_function('$a, $b', 'global $section; return (strtolower($a->{$section . "_name"}) > strtolower($b->{$section . "_name"}));')); 

Phil