1、连接MY代码
$connec=_connect("localhost","root","root") or die("不能连接库: ".mysql_error());
mysql_select_db("liuyanben",$connec) or die ("不能选择数据库: ".mysql_error());
mysql_query("set names 'gbk'");
?>
2、读取数据库,并实现循环输出
$sql="select * from liuyan order by ly_id desc";
$conn=mysql_query($sql,$connec);
while($rs=mysql_fetch_array($conn)){
?>
循环的内容.........
}
?>
3、如何实现分页,包括两个,两个调用
1)两个函数
//分页函数
function genpage(&;$sql,$page_size=2)
{
global $prepage,$nextpage,$pages,$sums; //out param
$page = $_GET["page"];
$eachpage = $page_size;
$pagesql = strstr($sql," from ");
$pagesql = "select count(*) as ids ".$pagesql;
$conn = mysql_query($pagesql) or die(mysql_error());
if($rs = mysql_fetch_array($conn)) $sums = $rs[0];
$pages = ceil(($sums-0.5)/$eachpage)-1;
$pages = $pages>=0?$pages:0;
$prepage = ($page>0)?$page-1:0;
$nextpage = ($page<$pages)?$page+1:$pages;
$startpos = $page*$eachpage;
$sql .=" limit $startpos,$eachpage ";
}
//显示分页
function showpage()
{
global $page,$pages,$prepage,$nextpage,$queryString; //param from genpage function
$shownum =10/2;
$startpage = ($page>=$shownum)?$page-$shownum:0;
$endpage = ($page+$shownum<=$pages)?$page+$shownum:$pages;
echo "共".($pages+1)."页: ";
if($page>0)echo "
首页";
if($startpage>0)
echo " ...
?";
for($i=$startpage;$i<=$endpage;$i++)
{
if($i==$page) echo "
[".($i+1)."] ";
else echo "
".($i+1)." ";
}
if($endpage<$pages)
echo "
? ... ";
if($page<$pages)
echo "
尾页";
}
//显示带分类的分页
function showpage1()
{
$fenlei=$_GET["fenleiid"];
global $page,$pages,$prepage,$nextpage,$queryString; //param from genpage function
$shownum =10/2;
$startpage = ($page>=$shownum)?$page-$shownum:0;
$endpage = ($page+$shownum<=$pages)?$page+$shownum:$pages;
echo "共".($pages+1)."页: ";
if($page>0)echo "
PHP_SELF?FENLEIID=$FENLEI&;PAGE=0$QUERYSTRING>首页";
if($startpage>0)
echo " ...
?";
for($i=$startpage;$i<=$endpage;$i++)
{
if($i==$page) echo "
[".($i+1)."] ";
else echo "
".($i+1)." ";
}
if($endpage<$pages)
echo "
? ... ";
if($page<$pages)
echo "
尾页";
}
?>
2)两个调用
第一个
$sql="select * from liuyan order by ly_id desc";
genpage($sql); //只需要正常代码加上这一行就ok。
$conn=mysql_query($
sql,$connec);
while($rs=
mysql_fetch_array($conn)){
?>
第二个
}
?>
showpage(); //显示页
?>
mysql_close();
?>
4、服务器端包含
5、如何将一条记录写入数据库,然后提示并跳转
$ly_title=$_POST["ly_title"];
$ly_content=$_POST["ly_content"];
$ly_time=$_POST["ly_time"];
$ly_author=$_POST["ly_author"];
$ly_email=$_POST["ly_email"];
$sql="insert into liuyan(ly_title,ly_content,ly_time,ly_author,ly_email) values('".$ly_title."','".$ly_content."','".$