preg_match vs. ereg & eregi

[Bloodwine]

I've been using ereg and eregi all this time and only recently realized that PHP had a function called preg_match ... from what I have read about it thus far it seems that preg_match is more flexible and fast.

Before I go through my codebase and switch out all ereg's and eregi's with preg_match's, are there any cases where using ereg and eregi is preferred?

[Weedpacket]

Not really; there's nothing ereg() or eregi() can do that preg_match() can't do faster, and there's quite a bit that preg_match() can do that would be a serious pain to do in ereg() or eregi(). There's no ereg-type function that corresponds to preg_match_all(), and preg_replace() can do things that ereg_replace() or eregi_replace() simply cannot do.

That said, there are situations were str_replace() would be preferred to preg_replace()!

[Bloodwine]

thanks for the info. I will go ahead and get rid of all ereg and eregi calls.

I already use strstr, stristr, and str_replace if I don't need any regex capabilities.