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How do I make this preg_match case insensitive?

Consider:

preg_match("#(.{100}$keywords.{100})#", strip_tags($description), $matches);

I’m trying to show only 100 characters in each side with the search string in the middle.

This code actually works, but it is a case sensitive. How do I make it case insensitive?

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Answer

Just add the i modifier after your delimiter #:

preg_match("#(.{100}$keywords.{100})#i", strip_tags($description), $matches);

If the i modifier is set, letters in the pattern match both upper and lower case letters.

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