?php require_once(''Connections/conn.php''); ?>
?php
$colname_rs = $_GET[''key'']; //获得用户输入
$result = explode('','',$_GET[''key'']);//分解用户输入的多个关键词，存入$result数组
mysql_select_db($database_conn, $conn); //连接数据库
//根据多个关键词构建SQL语句
$query_rs = "SELECT * FROM (";
for($i=0;$icount($result);$i++) //根据每个搜索关键词构建SQL语句
{
if($i==0) //对第一个关键词，不使用UNION
$query_rs .= "SELECT * FROM searchtable WHERE title LIKE ''%$result[0]%''
OR content LIKE ''%$result[0]%''";
else //对其他关键词，使用UNION连接
$query_rs .= " UNION SELECT * FROM searchtable WHERE title LIKE
''%$result[$i]%'' OR content LIKE ''%$result[$i]%''";
}
$query_rs .= ") T ORDER BY last_access DESC"; //对搜索结果排序
//执行SQL语句
$rs = mysql_query($query_rs, $conn) or die(mysql_error());
$row_rs = mysql_fetch_assoc($rs);
$totalRows_rs = mysql_num_rows($rs);
?>
html>
head>
title>Search/title>
meta http-equiv="Content-Type" content="text/html; charset=gb2312">
/head>
body>
form name="form1" method="get" action="?">
div align="center">请输入要搜索关键词：
input name="key" type="text" size="64" value="?php echo $_GET[''key''] ?>">
input type="submit" value="Submit">
/div>
/form>
p align="center">B>当前关键词：
?php
for($i=0;$icount($result);$i++) { //循环显示关键词
echo $result[$i]." ";
}
?>/B>/p>
p>hr>/p>
?php if($totalRows_rs>0) do { //显示当前搜索结果 ?>
p>* a href="show.php?key=?php echo $colname_rs ?>id=?php echo
$row_rs[''id'']; ?>">?php echo $row_rs[''title'']; ?>/a>(?php echo
$row_rs[''click'']; ?> | ?php echo $row_rs[''last_access'']; ?>)/p>
?php } while ($row_rs = mysql_fetch_assoc($rs)); ?>
/body>
/html>
?php
mysql_free_result($rs);
?>