Question

With the following function I sort the posts of RSS ascending.

usort($posts, 'mysort');

function mysort($x, $y) {
return strtotime($y->pubDate) - strtotime($x->pubDate);
}

However some of those feeds have instead of a pubDate tag (for the date), they have a tag named published.

All feeds are saved ine one array. My question is how to satisfy both using my function or another function? Something like these:

return strtotime($y->pubDate OR $y->published) - strtotime($x->pubDate OR $x->published);


Answer 1

Your question is not really clear, but is this what you what?

return strtotime(($y->pubDate)?$y->pubDate:$y->published) - 
                  strtotime(($x->pubDate)?$x->pubDate:$x->published);

Basically, I’m using a ternary IF operator that can be read like so: (if condition)?then do this:else do this;

Does it help?

Edit

Small edit based on your question about echoing the value:

The answer depends on which attribute take precedence over the other.. for instance, if pubDate it’s more importante than published, then you’d write something like:

echo ($x->pubDate)?$x->pubDate:$x->published;

And if it was the other way around:

echo ($x->published)?$x->published:$x->pubDate;

(changing $x for whatever your object is called ofcourse..)

Does this help?