如何将.css文件应用于以下PHP代码：[关闭]

Question

Is there a way to add a css file to the following php code:

<?php            
   echo "<a href=logout.php>Logout</a>";   
?>  

Answer 1

<?php  
      echo '<link href="stylesheet.css" rel="stylesheet" type="text/css" />';
      echo "<a id='logout' href='logout.php'>Logout</a>";   
 ?>

in stylesheet.css:

#logout{color:green;font-size:.7em;border:1px solid black;} 

Same way you would add it if it were html.