否定完整的正则表达式[重复]

Question

This question already has an answer here:

• How to negate the whole regex? 3 answers

Forcing a certain url structure "type/name" and my working regex is:

([a-z]+\/?[a-z]+\/?)+

Now I want to remove all other characters from the string via preg_replace and therefore negate the pattern above. Simple cases like [^a-z] work fine but for my pattern I don't get it working by negating the whole pattern.

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Answer 1

You can try this :

(?!([a-z]+\/?[a-z]+\/?)+)