Ashley Sheridan wrote: > On Tue, 2010-04-13 at 23:01 -0600, Ashley M. Kirchner wrote: >> >> However what I really want is a two-way comparison. I want elements that >> don't exist in either to be returned: >> > > > I don't see any problems with doing it that way. By some freak chance I made an array diff class about 2 weeks ago which covers what you need. attached :) usage: $diff = new ArrayDiff( $old , $new ); $diff->l; // deleted items $diff->r; // inserted items $diff->u; // unchanged items The script is optimised for huge arrays, thus it's slower for small arrays than the usual array_diff but with large arrays it's quicker. Regards Nathan
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