• PHP的 Mysqli扩展库的多语句执行



    $mysqli->multi_query($sqls);     执行多个sql语句,返回true/false
    有结果集时,使用 $mysqli->store_result(); 来获取结果集
    使用$mysqli->next_result()来移动结果集指针
    使用$mysqli->more_result()来判断是否还有下一个结果集

       1: <?php
       2: header("Content-Type:text/html; charset=utf8");
       3:  
       4: $mysqli = new mysqli("localhost","root","1234","test2");
       5:  
       6: if($mysqli->connect_error)
       7: {
       8:     die("连接数据库出错:".$mysqli->connect_error);
       9: }
      10:  
      11:  
      12: // // 增
      13: // $sqls = "insert into userinfo(uName,uAge,uPwd) values('测试07',18,MD5('1234'));";
      14: // // 删
      15: // $sqls .= "delete from userinfo where id=21;";
      16: // // 改
      17: // $sqls .= "update userinfo set uAge=19 where Id=21;";
      18:  
      19: // $result = $mysqli->multi_query($sqls);
      20:  
      21: // if($result){
      22: //     echo "操作成功!";
      23: // }else{
      24: //     die( "操作失败!".$mysqli->error);
      25: // }
      26:  
      27: // 查询多个结果集
      28: $sqls = "select * from userinfo where id>10;";
      29: $sqls .= "desc userinfo;";
      30: $sqls .= "select * from userinfo where uage>23;";
      31:  
      32: if($mysqli->multi_query($sqls))
      33: {
      34:     //循环读取每个表的数据
      35:     do{
      36:         if($result=$mysqli->store_result())
      37:         {
      38:             $tableStr="<table border='1' cellpadding='5'>";
      39:             //拼接表头信息
      40:             $tableStr.="<tr>";
      41:             while ($field=$result->fetch_field()) {
      42:                     $tableStr.="<th>".$field->name."</th>";
      43:             }
      44:             $tableStr.="</tr>";
      45:  
      46:             //拼接表内容信息
      47:             while ($row=$result->fetch_assoc()) {
      48:                 $tableStr.="<tr>";
      49:                 foreach ($row as $value) {
      50:                     $tableStr.="<td>$value</td>";
      51:                 }
      52:                 $tableStr.="</tr>";
      53:             }
      54:  
      55:             $tableStr.="</table>";
      56:  
      57:             //输出表数据
      58:             echo $tableStr;
      59:  
      60:             //释放结果集资源
      61:             $result->free();
      62:         }
      63:         if($mysqli->more_results()){
      64:             echo "<p>==================>>>>>></p>";
      65:         }
      66:     }while (@$mysqli->next_result());
      67: }
      68: else
      69: {
      70:     echo "操作出错:".$mysqli->error;
      71: }
      72:  
      73: //关闭连接
      74: $mysqli->close();
      75:  
      76: ?>

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  • 原文地址:https://www.cnblogs.com/lt-style/p/3511520.html
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