包括一次内部回声 - include once inside echo

include once inside echo

本文关键字：回声内部包括一 | 更新日期: 2024-04-12

我有两个标题，我想根据帐户类型显示它们；"a"表示管理员类型，"b"表示常规用户类型。我已经有了枚举集"a"、"b"。现在，对于连接到数据库后的php，我有：

    <?php
    while ($row = mysql_fetch_array($sql)){
        $name = $row["name"];
        $accounttype = $row["accounttype"];
          if($accounttype == "a"){
            $header = include_once "header_a.php";
          }
          if($accounttype == "b"){
            $header = include_once "header_b.php";
        }
    }
    ?>

至于html，我有：

   <html>
   <body>
     <?php echo $accounttype; ?>
   </body>
   </html>

编辑：好的，我用正确的方式工作：

   <?php
    $header ="";
    while ($row = mysql_fetch_array($sql)){
        $name = $row["name"];
        $accounttype = $row["accounttype"];
          if($accounttype == "a"){
            include_once "header_a.php";
          }else{
          include_once "header_b.php";
       }
    }
    ?>
   <html>
   <body>
     <?php echo $header; ?>
   </body>
   </html>

为什么不这样做：

<?php
while ($row = mysql_fetch_array($sql)){
    $name = $row["name"];
    $accounttype = $row["accounttype"];
}
include_once "header_".$accounttype.".php";
?>

<html>
<body>
    <?php echo $accounttype; ?>
</body>
</html>