I am using preg_match_all to build the array for shortcodes and it works fine but it also returns arrays with empty values see here please
Using this match witch I am sure is casuing the extra empty arrays
#\[link(.*?)link\=\"(.*?)\"(.*?)text\=\"(.*?)\"\]#e
How can I clear those. I tried array_filter but it did not work.
Thank you!
() represent a capture group and will be represented in the $matches array even if it is empty.
Either get rid of the () around the groups that are returning empty like (.*?) to make it just .*? (because presumably you don't want those returned) or tell the engine not to capture that with (?: like (?:.*?).
#\[link.*?link\=\"(.*?)\".*?text\=\"(.*?)\"\]#e
Or if you do want those returned when they are not empty, then use + instead of *:
#\[link(.+?)link\=\"(.*?)\"(.+?)text\=\"(.*?)\"\]#e
The array_filter() function should work if you use it like this:
$matches = array_filter($matches, function($item) { return trim($item[0]) && true; });
AbraCadaver's answer is the best way to go.
