> On Jun 23, 2019, at 05:35, Rowan Collins <rowan.coll...@gmail.com> wrote: > > On 22 June 2019 20:56:24 BST, Ben Ramsey <b...@benramsey.com> wrote: >> Perhaps it would only be an issue with the case-insensitive versions, >> as Nikita points out? If so, can someone provide some example strings >> where an mb_starts_with_ci() would return true, while >> str_starts_with_ci() would return false? > > > That's easy: any character that has a lower- and uppercase form, and is not > represented as one byte in the target encoding. For that matter, any such > character in the non-ASCII section of a single-byte encoding, since a > non-mbstring case insensitive flag would presumably leave everything other > than ASCII letters untouched. > > So, any non-Latin script, like Greek or Cyrillic; any accented characters, > unless you're lucky and they're represented by ASCII-letter plus combining > modifier; the Turkish "i", which if I remember rightly has three forms not > two; and so on.
According to Google, "İyi akşamlar” is the Turkish phrase for “Good evening” (Turkish speakers, please correct me, if this wrong). However, using the existing mb_* functions, I can’t get mb_stripos() to return 0 when trying to see if the string “İYI AKŞAMLAR” begins with “i̇yi.” I’m just using UTF-8, so maybe there’s an encoding issue here? $string = 'İyi akşamlar'; $upper = mb_strtoupper($string); $lowerChars = mb_strtolower(mb_substr($string, 0, 3)); var_dump($string, $upper, $lowerChars); var_dump(mb_stripos($upper, $lowerChars));
signature.asc
Description: Message signed with OpenPGP
