Req #67442 [NEW]: mbstring equivalent of `explode`

From: phpmpan at mpan dot pl Operating system: PHP version: Irrelevant Package: mbstring related Bug Type: Feature/Change Request Bug description:mbstring equivalent of explode Description: ------------ mbstring is missing explode equivalent. • explode itself can't be used for the purpose, because it fails for encodings that either have no autosynchronization property (like utf16) or identical byte sequences are otherwise not uniquely mapped to characters. • mb_split requires regex as its argument - hence it is unsuitable if the delimiter is not known during writing the code. • mb_strpos + mb_substr tandem is very slow. Test script: --------------- function printHexString($string) { foreach (str_split($string) as $character) { echo dechex(ord($character)), ' '; } echo "\n"; } mb_internal_encoding('utf-8'); // should match the actual encoding $input = mb_convert_encoding('Ω☡Ω☡Ω☡☦abc', 'utf-16'); // Ω is U+2126, ☡ is U+2621 $delimiter = mb_convert_encoding('☦', 'utf-16'); // ☦ is U+2626 printHexString($input); echo "\n"; $exploded = explode($delimiter, $input); foreach ($exploded as $element) { printHexString($element); } Expected result: ---------------- (assuming mb_explode instead explode) 21 26 26 21 21 26 26 21 21 26 26 21 26 26 0 61 0 62 0 63 21 26 26 21 21 26 26 21 21 26 26 21 0 61 0 62 0 63 Actual result: -------------- 21 26 26 21 21 26 26 21 21 26 26 21 26 26 0 61 0 62 0 63 21 21 21 21 21 21 0 61 0 62 0 63 -- Edit bug report at https://bugs.php.net/bug.php?id=67442&edit=1 --