This question already has an answer here:
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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You can try this :
(?!([a-z]+\/?[a-z]+\/?)+)