下面这句代码错哪了

下面这句代码哪里错了

$aid = 11387;<br />
$_G['uid'] = 332;<br />
$tid =50;<br />
function aidencode($aid, $type = 0, $tid = 0) {<br />
	$s = !$type ? $aid.'|'.substr(md5($aid.md5('asdfasfas'.TIMESTAMP.$_G['uid']), 0, 8).'|'.TIMESTAMP.'|'.$_G['uid'].'|'.$tid : $aid.'|'.md5($aid.md5<br />
<br />
('asdfasfas').TIMESTAMP).'|'.TIMESTAMP;<br />
	return rawurlencode(base64_encode($s));<br />
}<br />
<br />
<br />
echo aidencode(11387);

麻烦知道的大哥直接给完整代码谢谢了

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------解决方案--------------------

<br />
$aid = 11387;<br />
$_G['uid'] = 332;<br />
$tid =50;<br />
function aidencode($aid, $type = 0, $tid = 0) {<br />
    $s = !$type ? $aid.'<br><font color='#FF8000'>------解决方案--------------------</font><br>'.substr(md5($aid.md5('asdfasfas'.TIMESTAMP.$_G['uid'])), 0, 8).'<br><font color='#FF8000'>------解决方案--------------------</font><br>'.TIMESTAMP.'<br><font color='#FF8000'>------解决方案--------------------</font><br>'.$_G['uid'].'<br><font color='#FF8000'>------解决方案--------------------</font><br>'.$tid  : $aid.'<br><font color='#FF8000'>------解决方案--------------------</font><br>'.md5($aid.md5('asdfasfas').TIMESTAMP).'<br><font color='#FF8000'>------解决方案--------------------</font><br>'.TIMESTAMP;<br />
    return rawurlencode(base64_encode($s));<br />
}<br />
echo aidencode(11387);<br />

------解决方案--------------------

<?php<br />
$aid = 11387;<br />
$_G['uid'] = 332;<br />
$tid =50;<br />
define('TIMESTAMP', time());<br />
function aidencode($aid, $type = 0, $tid = 0) {<br />
	global $_G;<br />
	global $tid;<br />
	$s = !$type ? $aid.'<br><font color='#FF8000'>------解决方案--------------------</font><br>'.substr(md5($aid.md5('asdfasfas'.TIMESTAMP.$_G['uid'])), 0, 8).'<br><font color='#FF8000'>------解决方案--------------------</font><br>'.TIMESTAMP.'<br><font color='#FF8000'>------解决方案--------------------</font><br>'.$_G['uid'].'<br><font color='#FF8000'>------解决方案--------------------</font><br>'.$tid : $aid.'<br><font color='#FF8000'>------解决方案--------------------</font><br>'.md5($aid.md5('asdfasfas').TIMESTAMP).'<br><font color='#FF8000'>------解决方案--------------------</font><br>'.TIMESTAMP;<br />
	return rawurlencode(base64_encode($s));<br />
}<br />
<br />
<br />
echo aidencode(11387);<br />
?>