PHP与SQL语句常用大全

本文给大家介绍PHP与SQL语句常用大全，具体代码如下所述：

    <?php
    $conn=mysql_connect("localhost","root","root");
    mysql_select_db("db_database17",$conn);
    mysql_query("set names gb2312");
    ?>
    <?php
    $sql1=mysql_query("select usernc,face,ip,email,qq from tb_user where id='".$info["userid"]."'",$conn);
    $info1=mysql_fetch_array($sql1); 
    echo $info1["face"];
    ?>
    action="savereg.php"
    <input type="text" name="usernc"
    <input type="text" name="userpwd"
    <input type="text" name="truename" 
    <?php
    if(mysql_query("insert into tb_user(usernc,userpwd,truename,email,qq,tel,ip,address,face,regtime,sex,usertype) values('".$usernc."','".md5(trim($_POST["userpwd"]))."','".$_POST["truename"]."','".$_POST["email"]."','".$_POST["qq"]."','".$_POST["tel"]."','".$ip."','".$_POST["address"]."','".$_POST["face"]."','".date("Y-m-d H:i:s")."','".$_POST["sex"]."','0')",$conn)){
    if($_SESSION["unc"]!=""){
      session_unregister("unc");
      }
    session_register("unc");
      $_SESSION["unc"]=$usernc;  
      echo "<script>alert('注册成功！');history.back();</script>";
    }else{
      echo "<script>alert('注册失败！');history.back();</script>";
    }
    ?>
    <?php
      $sql=mysql_query("select count(*) as total from tb_leaveword ",$conn);//把查询的结果存入total中
      $info=mysql_fetch_array($sql);
      $total=$info[total];
      if($total==0){
       echo "<div align=center>对不起，暂无留言！</div>";
      }else{
       if(!isset($_GET["page"]) || !is_numeric($_GET["page"])){
         $page=1; 
       }else{
         $page=intval($_GET["page"]);
       }
       $pagesize=3;
       if($total%$pagesize==0){
         $pagecount=intval($total/$pagesize);
       }else{
         $pagecount=ceil($total/$pagesize);
       }
       $sql=mysql_query("select * from tb_leaveword order by createtime desc limit ".($page-1)*$pagesize.",$pagesize ",$conn);
       while($info=mysql_fetch_array($sql)){
       ?>
    <table width="520" height="5" border="0" align="center" cellpadding="0" cellspacing="0">
       <tr>
        <td></td>
       </tr>
      </table>
       <table width="550" height="155" border="0" align="center" cellpadding="0" cellspacing="1" bgcolor="#FCD424">
        <tr>
         <td bgcolor="#FFFFFF" valign="top"><table width="550" height="24" border="0" align="center" cellpadding="0" cellspacing="0">
          <tr>
           <td width="450" background="images/dh_back_1.gif"> 主  题：<?php echo unhtml($info["title"]);?></td>
           <td width="100" background="images/dh_back_1.gif"><div align="center">
       <script language="javascript">
        function openeditwindow(x){
        window.open("editleaveword.php?id="+x,"newframe","top=100,left=200,width=450,height=280,menubar=no,location=no,scrollbars=no,status=no");
       }
       </script>
      <?php 
       $sqlu=mysql_query("select usernc from tb_user where id='".$info["userid"]."'",$conn);
       $infou=mysql_fetch_array($sqlu);
       if($infou["usernc"]==$_SESSION["unc"]){
      ?> 
        <a href="javascript:openeditwindow(<?php echo $info[id];?>)" class="a1">编辑</a>
      <?php
       }
      ?> 

      <?php
       if($_SESSION["unc"]!=""){
       $sqld=mysql_query("select usertype from tb_user where usernc='".$_SESSION["unc"]."'",$conn);
            $infod=mysql_fetch_array($sqld);
       if($infod["usertype"]==1){ 
       ?>
       <a href="javascript:if(window.confirm('确定删除该留言信息么？')==true){window.location.href='deleteleaveword.php?id=<?php echo $info[id];?>';}" class="a1">删除</a>
      <?php
       }
       }
      ?>
       </div></td>
          </tr>
         </table>
          <table width="550" height="5" border="0" align="center" cellpadding="0" cellspacing="0">
           <tr>
            <td></td>
           </tr>
          </table>
      <table width="550" height="120" border="0" align="center" cellpadding="0" cellspacing="0">
           <tr>
            <td width="150" height="90"><div align="center"><img src="<?php
       $sql1=mysql_query("select usernc,face,ip,email,qq from tb_user where id='".$info["userid"]."'",$conn);
       $info1=mysql_fetch_array($sql1); 
       echo $info1["face"];
       ?>" /><br><?php echo $info1["usernc"];?></div></td>
            <td width="10" background="images/line_down.gif"></td>
            <td width="390" rowspan="2"><?php echo unhtml($info["content"]);?></td>
           </tr>
           <tr>
            <td height="30"><div align="center"><img src="images/email.gif" width="45" height="16" alt="<?php echo $info1[email];?>"/><img src="images/ip.gif" width="55" height="16" alt="<?php echo $info1[ip];?>"/><img src="images/qq.gif" width="45" height="16" alt="<?php echo $info1[qq];?>"/></div></td>
            <td width="10" background="images/line_down.gif"></td>
           </tr>
          </table>
      </td>
        </tr>
       </table>
      <?php
      }
      }
      ?>

      <table width="550" height="25" border="0" align="center" cellpadding="0" cellspacing="0">
         <tr>
          <td width="351"><div align="left">共有留言 <?php echo $total;?> 条 每页显示 <?php echo $pagesize;?> 条 第 <?php echo $page;?> 页/共 <?php echo $pagecount;?> 页</div></td>
          <td width="199"><div align="right"><a href="<?php echo $_SERVER["PHP_SELF"]?>?page=1" class="a1">首页</a> <a href="<?php echo $_SERVER["PHP_SELF"]?>?page=<?php 
      if($page>1) 
       echo $page-1;
      else
       echo 1; 
       ?>" class="a1">上一页</a> <a href="<?php echo $_SERVER["PHP_SELF"]?>?page=<?php 
      if($page<$pagecount) 
       echo $page+1;
      else
       echo $pagecount; 
       ?>

以上所述是小编给大家介绍的PHP与SQL语句常用大全，希望对大家有所帮助，如果大家有任何疑问欢迎给我留言，小编会及时回复大家的，在此也非常感谢大家对脚本之家网站的支持！