php 一些常用的语句

1：连接数据库： ?php $conn = mysql_connect("localhost","root","root") or die("数据库连接失败".mysql_error()); mysql_select_db("db_pursey",$conn) or die("数据库访问失败".mysql_error()); mysql_query("set names gb2312"); ? 2：插入数据： ?php

1：连接数据库：

 $conn = mysql_connect("localhost","root","root") or die("数据库连接失败".mysql_error());
 mysql_select_db("db_pursey",$conn) or die("数据库访问失败".mysql_error());
 mysql_query("set names gb2312");
?>

2：插入数据：

include("conn/conn.php");
$type=$_POST[type];
$title=$_POST[title];
$content=$_POST[content];
$linkman=$_POST[linkman];
$tel=$_POST[tel];
//$edate=date("Y-m-d h:i:s");获得系统日期
$edate=date("Y-m-d H:i:s");
$sql=mysql_query("insert into tb_info(type,title,content,linkman,tel,checkstate,edate) values('$type','$title','$content','$linkman','$tel',0,'$edate')");
if($sql){
 //php中输出<script>语句的方法<br /> echo "<script>alert('恭喜您，信息发布成功！');window.location.href='release.php';</script>";
}else{
 echo "<script>alert('对不起，信息发布失败！');history.back();</script>";
}
?>

3：查询数据

    include("conn/conn.php");
    $type=$_POST[type];
    $content=$_POST[content];
    $sql1=mysql_query("select * from tb_leaguerinfo  where checkstate=1 and type='$type' and (content like'%$content%' or title like'%$content%' or linkman like'%$content%' or tel like'%$content%')");
    $info1=mysql_fetch_array($sql1);
    $sql=mysql_query("select * from tb_info  where checkstate=1 and type='$type' and (content like'%$content%' or title like'%$content%' or linkman like'%$content%' or tel like'%$content%')");
    $info=mysql_fetch_array($sql);
?>
    if($info1){
    do{
?>
   

                   
                     
                   
                   
                     
                   
                   
                     
                   
                   
                     
                   
                 

『".$content."",$info1[type]);?>』 ".$content."",$info1[title]);?>  ".$content."",$info1[edate]);?>

    ".$content."",$info1[content]);?>

 联系人：".$content."",$info1[linkman]);?>   联系电话：".$content."",$info1[tel]);?>

                    }while($info1=mysql_fetch_array($sql1));
    ?>
    
           
           
             

         if($info){
     do{
    ?>
                 
                   
                     
                   
                   
                     
                   
                   
                     
                   
                   
                     
                   
                 

『".$content."",$info[type]);?>』 ".$content."",$info[title]);?>  ".$content."",$info[edate]);?>

    ".$content."",$info[content]);?>

 联系人：".$content."",$info[linkman]);?>   联系电话：".$content."",$info[tel]);?>

                       } while($info=mysql_fetch_array($sql));
     }
    }else{
    ?>
         if($info){
     do{
    ?>
                 
                   
                     
                   
                   
                     
                   
                   
                     
                   
                   
                     
                   
                 

『".$content."",$info[type]);?>』 ".$content."",$info[title]);?>  ".$content."",$info[edate]);?>

    ".$content."",$info[content]);?>

 联系人：".$content."",$info[linkman]);?>   联系电话：".$content."",$info[tel]);?>

                       } while($info=mysql_fetch_array($sql));
     }else{
     ?>
             
                   
                     
                   
                 

您检索的信息资源不存在！

         }
    }
?>