could you please explain what this preg_match code is doing! I also don't understand why it starting with # tag?
if (!preg_match('#\.(.+)$#', $file['name'][$key], $matches)) {..;}
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pcre lets you choose what character you want to delimit the pattern, that's all. in this case, it's `#foo#`, instead of `/foo/` – Marc B Apr 06 '15 at 19:48
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Hashtag is being used as a delimiter. – Pedro Lobito Mar 07 '21 at 00:51