Online PHP editor | rfc for Yjsdt

@ 2014-02-12T01:40:39Z

<?php

if ( !function_exists( 'mb_convert_encoding' ) ) {
    exit('[mbstring not loaded]');
}

$oldSub = mb_substitute_character();
mb_substitute_character( 0xfffd );
$res = mb_convert_encoding( "\xf4\x90\x80\x80 \xc2", 'UTF-8', 'UTF-8' );
mb_substitute_character( $oldSub );

if ( $res === "\xef\xbf\xbd\xef\xbf\xbd\xef\xbf\xbd\xef\xbf\xbd \xef\xbf\xbd" ) {
    // mbstring follows best practices.
    $level = 3;
} elseif ( $res[0] !== "\xef" ) {
    // mbstring is old; it treats values above U+10FFFF as valid.
    // This is the case for PHP 5.3.
    $level = 0;
} elseif ( substr_compare( $res, " \xef\xbf\xbd", -4 ) !== 0 ) {
    // mbstring is affected by <https://bugs.php.net/bug.php?id=65045>.
    $level = 1;
} else {
    // mbstring nevertheless doesn't follow best practices. (Perhaps this system
    // has an old version of ICU, and mbstring was changed to use it.)
    $level = 2;
}

echo $level;

Output for git.master, git.master_jit, rfc.property-hooks: 3

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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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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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