getid3_asf::GUIDtoBytestring() –
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Description
Usage
$string = getid3_asf::GUIDtoBytestring( $GUIDstring );
Parameters
- $GUIDstring
- ( string ) required –
Returns
string
Source
File name: wordpress/wp-includes/ID3/module.audio-video.asf.php
Lines:
1 to 34 of 34
public static function GUIDtoBytestring($GUIDstring) { // Microsoft defines these 16-byte (128-bit) GUIDs in the strangest way: // first 4 bytes are in little-endian order // next 2 bytes are appended in little-endian order // next 2 bytes are appended in little-endian order // next 2 bytes are appended in big-endian order // next 6 bytes are appended in big-endian order // AaBbCcDd-EeFf-GgHh-IiJj-KkLlMmNnOoPp is stored as this 16-byte string: // $Dd $Cc $Bb $Aa $Ff $Ee $Hh $Gg $Ii $Jj $Kk $Ll $Mm $Nn $Oo $Pp $hexbytecharstring = chr(hexdec(substr($GUIDstring, 6, 2))); $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 4, 2))); $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 2, 2))); $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 0, 2))); $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 11, 2))); $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 9, 2))); $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 16, 2))); $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 14, 2))); $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 19, 2))); $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 21, 2))); $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 24, 2))); $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 26, 2))); $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 28, 2))); $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 30, 2))); $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 32, 2))); $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 34, 2))); return $hexbytecharstring; }