PHP Case Insensitive Version of file_exists()

Question

I\'m trying to think of the fastest way to implement a case insensitive file_exists function in PHP. Is my best bet to enumerate the file in the directory and do a strtolowe

Answer 1

AbraCadaver's answer with +7 rating is incorrect, I do not have enough reputation to comment under it, so here is correct solution, based on his answer:

$result = count(preg_grep('/\/'.preg_quote($filename)."$/i", glob("$path/*")));

AbraCadaver's answer is incorrect, because it returns true if you test against file foo.jpg and files like anytext_foo.jpg exist.