[RESOLVED] Problem with preg_split

[mrgrammar]

I'm using the following code:

	$catname = 'dog::big::doberman';
	$catname_split = array();
	$catname_split = preg_split('::',$catname);
	$display_catname = end($catname_split);
	echo $display_catname;

$display_catname should show 'doberman' but it shows nothing at all.

I changed preg_split to explode and it worked fine. Why would it work with explode and not preg_split? Is there a problem with the code above?

[bradgrafelman]

mrgrammar;10986855 wrote:

Why would it work with explode and not preg_split?

The pattern you gave [man]preg_split/man was empty; all it contained was an opening delimiter and then a closing delimiter immediately after it. It's essentially the same as doing:

explode('',$catname)

which PHP properly informs you is not possible due to the empty delimiter. Apparently, preg_split() offers no such warning in the case of a valid-but-empty PCRE.

mrgrammar;10986855 wrote:

Is there a problem with the code above?

Yup, two problems. The first is the one I noted above.

The second is that you're using [man]preg_split/man when [man]explode/man should be used instead. 😉

[mrgrammar]

Thanks. Appreciate it.