再看一个例子
<?php
$username = 'test@bfw.wiki';
$password = 'pw123123';
$packdata = pack('SCSa32a32',0x0040,0x00,0x0006, $username, $password );
$unpackdata = unpack('Shead/Cflag/Sflag2/a32word/a32passd/',$packdata);
print_r($unpackdata);
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