新手上路(关于mysql_fetch_array)

<?php
include 'con_db.php';
$sqlsl="SELECT * FROM phptestdb.inputtest";
$dbdate=mysql_query($sqlsl)or die(mysql_error());
while($list=mysql_fetch_array($dbdate)){
?>

=$list[content]?>
用户:=$list[user]?>时间:=$list[date]?>

测试提示:
undefined constant content - assumed 'content'
Use of undefined constant user - assumed 'user'
Use of undefined constant date - assumed 'date'

才刚上路,求知道的人指点,万分感谢!