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@ 2014-01-30T14:28:01Z

<?php

function strToHex($string)
{
    $hex='';
    for ($i=0; $i < strlen($string); $i++)
    {
        $hex .= dechex(ord($string[$i]));
    }
    return $hex;
}
function hexToStr($hex)
{
    $string='';
    for ($i=0; $i < strlen($hex)-1; $i+=2)
    {
        $string .= chr(hexdec($hex[$i].$hex[$i+1]));
    }
    return $string;
}

$test = "ffff:eeee:dddd:cccc:bbbb:aaaa:9999:8888";
$testParts = explode(':', $test);

$testHex = array();

foreach($testParts as $testPart){
    array_push($testHex, $testPart);
    //echo strToHex($testPart) . "<br>\n";
}

$packed = pack('H H H H H H H H', $testParts[0], $testParts[1], $testParts[2], $testParts[3], $testParts[4], $testParts[5], $testParts[6], $testParts[7]);
$unpacked = unpack('H H H H H H H H', $packed);
$unpackedString = array();
//var_dump($testParts);
//var_dump($testHex);
var_dump($packed);
var_dump($unpacked);
foreach($unpacked as $unpack){
	array_push($unpackedString, $unpack);
}
echo implode(':', $unpackedString);

?>

Output for git.master, git.master_jit, rfc.property-hooks: Fatal error: Uncaught ValueError: Type : unknown format code in /in/NVhuV:32 Stack trace: #0 /in/NVhuV(32): pack('H H H H H H H H', 'ffff', 'eeee', 'dddd', 'cccc', 'bbbb', 'aaaa', '9999', '8888') #1 {main} thrown in /in/NVhuV on line 32
Process exited with code 255.

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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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