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@ 2014-06-27T14:18:11Z

<?php

function hex_dump($data, $newline="\n")
{
    static $from = '';
    static $to = '';

    static $width = 16; # number of bytes per line

    static $pad = '.'; # padding for non-visible characters

    if ($from==='')
    {
        for ($i=0; $i<=0xFF; $i++)
        {
            $from .= chr($i);
            $to .= ($i >= 0x20 && $i <= 0x7E) ? chr($i) : $pad;
        }
    }

    $hex = str_split(bin2hex($data), $width*2);
    $chars = str_split(strtr($data, $from, $to), $width);

    $offset = 0;
    foreach ($hex as $i => $line)
    {
        echo sprintf('%6X',$offset).' : '.implode(' ', str_split($line,2)) . ' [' . $chars[$i] . ']' . $newline;
        $offset += $width;
    }
}

$str = "\xC2\xA1Hola!"; // 7 bytes (6 characters in UTF-8)

echo $str."\n";

hex_dump($str);
echo"\n";
hex_dump(mb_convert_encoding($str, 'UTF-32', 'UTF-8'));
echo"\n";
hex_dump(iconv('UTF-8', 'UTF-32', $str));
echo"\n";
hex_dump(mb_convert_encoding(mb_convert_encoding($str, 'UTF-32', 'UTF-8'), 'UTF-8', 'UTF-32'));

Output for git.master, git.master_jit, rfc.property-hooks: ¡Hola! 0 : c2 a1 48 6f 6c 61 21 [..Hola!] 0 : 00 00 00 a1 00 00 00 48 00 00 00 6f 00 00 00 6c [.......H...o...l] 10 : 00 00 00 61 00 00 00 21 [...a...!] Warning: iconv(): Wrong encoding, conversion from "UTF-8" to "UTF-32" is not allowed in /in/rvYb1 on line 40 0 : c2 a1 48 6f 6c 61 21 [..Hola!]

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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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