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@ 2022-09-26T13:50:39Z

<?php
var_dump(mb_convert_case("AあいうえおBBcC",  MB_CASE_UPPER, "ISO-2022-JP"));
var_dump(mb_strtoupper("AあいうえおBBcC", "ISO-2022-JP"));
var_dump(mb_strtolower("AあいうえおBBcC", "ISO-2022-JP"));
var_dump(mb_stripos("AあいうえおBBcC", "?", 0, "ISO-2022-JP"));
var_dump(mb_strpos("AあいうえおBBcC", "?", 0, "ISO-2022-JP"));

var_dump(mb_strpos("AあいうえおBBcC", "?", 0, "SJIS"));
var_dump(mb_stripos("AあいうえおBBcC", "?", 0, "SJIS"));

mb_substitute_character("none");
var_dump(mb_convert_case("AあいうえおBBcC",  MB_CASE_UPPER, "ISO-2022-JP"));
var_dump(mb_strtoupper("AあいうえおBBcC", "ISO-2022-JP"));
var_dump(mb_strtolower("AあいうえおBBcC", "ISO-2022-JP"));
var_dump(mb_stripos("AあいうえおBBcC", "?", 0, "ISO-2022-JP"));
var_dump(mb_strpos("AあいうえおBBcC", "?", 0, "ISO-2022-JP"));

var_dump(mb_strpos("AあいうえおBBcC", "?", 0, "SJIS"));
var_dump(mb_stripos("AあいうえおBBcC", "?", 0, "SJIS"));

Output for git.master_jit, git.master: string(20) "A???????????????BBCC" string(20) "A???????????????BBCC" string(20) "a???????????????bbcc" int(1) int(1) int(5) int(5) string(5) "ABBCC" string(5) "ABBCC" string(5) "abbcc" bool(false) int(1) int(5) bool(false)
Output for rfc.property-hooks: string(20) "A???????????????BBCC" string(20) "A???????????????BBCC" string(20) "a???????????????bbcc" bool(false) bool(false) bool(false) bool(false) string(5) "ABBCC" string(5) "ABBCC" string(5) "abbcc" bool(false) bool(false) bool(false) bool(false)

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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