Online PHP editor | output for jojeZ

@ 2014-01-30T14:26:36Z

<?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, strToHex($testPart));
    //echo strToHex($testPart) . "<br>\n";
}

$packed = pack('0\xH*', $testParts[0], $testParts[1], $testParts[2], $testParts[3], $testParts[4], $testParts[5], $testParts[6], $testParts[7]);
$unpacked = unpack('0\xH*', $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 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: Fatal error: Uncaught ValueError: Type 0: unknown format code in /in/jojeZ:32 Stack trace: #0 /in/jojeZ(32): pack('0\\xH*', 'ffff', 'eeee', 'dddd', 'cccc', 'bbbb', 'aaaa', '9999', '8888') #1 {main} thrown in /in/jojeZ on line 32
Process exited with code 255.
Output for 4.4.8 - 4.4.9, 5.2.4 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33: Warning: pack(): Type 0: unknown format code in /in/jojeZ on line 32 Warning: unpack(): Invalid format type 0 in /in/jojeZ on line 33 bool(false) bool(false) Warning: Invalid argument supplied for foreach() in /in/jojeZ on line 39
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.7, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.3: Warning: pack(): Type 0: unknown format code in /in/jojeZ on line 32 bool(false) array(0) { }
Output for 4.3.0 - 4.3.1: Warning: pack() [http://www.php.net/function.pack]: Type 0: unknown format code in /in/jojeZ on line 32 bool(false) array(0) { }

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