代码运作在win5.3.13正常 但是在linux5.2.8 中出现syntax error，unexpected T_STRING

<?php header('Content-type: text/xml'); ?><br />
<?xml version="1.0" encoding="utf-8" ?><br />
<return><br />
	<code><?php echo $code; ?><br />
	<?php if(isset($message)): ?><br />
	<message><?php echo $message; ?></message><br />
	<?php endif; ?><br />
</return>

<?php header('Content-type: text/xml'); <br />
echo '<?xml version="1.0" encoding="utf-8" ?>'; ?><br />
<return><br />
	<code><?php echo $code; ?><br />
	<?php if(isset($message)): ?><br />
	<message><?php echo $message; ?></message><br />
	<?php endif; ?><br />
</return>