如何在php中引入js 或者一个html

Question

如何在php中引入js 或者一个htmlwhile($row = mysql_fetch_array($result)){ echo "用户".$row['username']."&nbsp;&nbsp;&nbsp"."发表于" ."&nbsp;&nbsp;&nbsp"   .date("Y-m-d",$row['createtime'])."<br>"; echo "内容：".$row['content']."<br>"; echo "<script src='answer.js'></script>"; echo "<br>----------------------------------------<br>"; }

Answer 1

<?php
include("head.html");
include("js.js");
?>
如上

Answer 2

直接写就行吧，直接在php代码后面写<br>之类的就行吧？