Question

无论需要什么命令，我都从mysql更改为mysqli。当我运行它时，我收到以下错误：

创建表时出错：SQL语法中有错误;检查手册，对应右边的MySQL服务器版本语法使用附近＆＃39;），）＆＃39;在第7行

此通知：

注意：未定义的偏移量：C：\ XAMPP \ htdocs \ prog_db_mysqli.php中的4 第41行

和那个警告：

警告：mysqli_close（）期望参数1为mysqli，boolean 在第47行的C：\ XAMPP \ htdocs \ prog_db_mysqli.php中给出

<?php
 require_once 'reader.php';
 $data = new Spreadsheet_Excel_Reader();
 $data->setOutputEncoding('CP1251');
 $data->read('prog.xls');

 $con = mysqli_connect("localhost","root","","mynewdb");
 // Check connection
 if (mysqli_connect_errno())
 {
    echo "Failed to connect to MySQL: " . mysqli_connect_error();
 }

 // Create table
 $sql="CREATE TABLE prog_scores(

      pid INT(1),
      pname VARCHAR(100),
      py TEXT(4),
      pcrit VARCHAR(100),
      pscore DOUBLE(100),
  )";

  // Execute query
 if (mysqli_query($con,$sql))
 {
     echo "Table prog_scores created successfully";
 }
 else
 {
      echo "Error creating table: " . mysqli_error($con);
 }

 for($x = 2; $x <= count($data->sheets[0]["cells"]); $x++)
 {
       //$sno = $data->sheets[0]["cells"][$x][1];
        $pname = $data->sheets[0]["cells"][$x][1];
        $py = $data->sheets[0]["cells"][$x][2];
        $pcrit = $data->sheets[0]["cells"][$x][3];
        $pscore = $data->sheets[0]["cells"][$x][4];



       $res = mysqli_query($con,"INSERT INTO prog_scores 
        (pname,pcrit,pscore,py) VALUES     ('$pname','$py','$pcrit','$pscore')");   
      mysqli_close($res);
  }
?>

我还检查了动态扩展中的php.ini文件，并且我从

更改了

         ;;;;;;;;;;;;;;;;;;;;;;
         ; Dynamic Extensions ;
         ;;;;;;;;;;;;;;;;;;;;;;

       ; If you wish to have an extension loaded automatically, use the       following
       ; syntax:
       ;
       ;   extension=modulename.extension
       ;
       ; For example, on Windows:
       ;
       ;   extension=msql.dll
       ;
       ; ... or under UNIX:
       ;
       ;   extension=msql.so
       ;
       ; ... or with a path:
       ;
       ;   extension=/path/to/extension/msql.so
       ;
       ; If you only provide the name of the extension, PHP will look for it in its
       ; default extension directory.
       ;
       ; Windows Extensions
       ; Note that ODBC support is built in, so no dll is needed for it.
       ; Note that many DLL files are located in the extensions/ (PHP 4) ext/ (PHP 5)
       ; extension folders as well as the separate PECL DLL download (PHP 5).
       ; Be sure to appropriately set the extension_dir directive.



       extension=php_bz2.dll
       extension=php_curl.dll
       extension=php_mbstring.dll
       extension=php_exif.dll
      ;extension=php_fileinfo.dll
       extension=php_gd2.dll
       extension=php_gettext.dll
      ;extension=php_gmp.dll
      ;extension=php_intl.dll
      ;extension=php_imap.dll
      ;extension=php_interbase.dll
      ;extension=php_ldap.dll
      ;extension=php_mssql.dll
      ;extension=php_mbstring.dll
      ;extension=php_exif.dll      ; Must be after mbstring as it depends on it
      extension=php_mysql.dll
      extension=php_mysqli.dll
     ;extension=php_oci8.dll      ; Use with Oracle 10gR2 Instant Client
     ;extension=php_oci8_11g.dll  ; Use with Oracle 11gR2 Instant Client

      extension=php_openssl.dll
     ;extension=php_pdo_firebird.dll
      extension=php_pdo_mysql.dll
     ;extension=php_pdo_oci.dll
     ;extension=php_pdo_odbc.dll
     ;extension=php_pdo_pgsql.dll
      extension=php_pdo_sqlite.dll
     ;extension=php_pdo_sqlite_external.dll
     ;extension=php_pgsql.dll
     ;extension=php_pspell.dll
     ;extension=php_shmop.dll

到这个

        ;;;;;;;;;;;;;;;;;;;;;;
         ; Dynamic Extensions ;
         ;;;;;;;;;;;;;;;;;;;;;;

       ; If you wish to have an extension loaded automatically, use the       following
       ; syntax:
       ;
       ;   extension=modulename.extension
       ;
       ; For example, on Windows:
       ;
       ;   extension=msql.dll
       ;
       ; ... or under UNIX:
       ;
       ;   extension=msql.so
       ;
       ; ... or with a path:
       ;
       ;   extension=/path/to/extension/msql.so
       ;
       ; If you only provide the name of the extension, PHP will look for it in its
       ; default extension directory.
       ;
       ; Windows Extensions
       ; Note that ODBC support is built in, so no dll is needed for it.
       ; Note that many DLL files are located in the extensions/ (PHP 4) ext/ (PHP 5)
       ; extension folders as well as the separate PECL DLL download (PHP 5).
       ; Be sure to appropriately set the extension_dir directive.

         extension=php_mysqli.dll

但它不起作用。我有PHP 5.5，我正在使用xampp。

Answer 1

您在插入后立即在循环内执行mysqli_close($res);，这意味着在循环的下一次迭代中连接已经关闭。

您需要在循环之后关闭mysqli连接 ，而不是在其中

for($x = 2; $x <= count($data->sheets[0]["cells"]); $x++) { .... $res = mysqli_query($con,"INSERT INTO prog_scores (pname,pcrit,pscore,py) VALUES ('$pname','$py','$pcrit','$pscore')"); } mysqli_close($res);

Answer 2

更改此

if (mysqli_connect_errno())
 {
    echo "Failed to connect to MySQL: " . mysqli_connect_error();
 }

到

if (mysqli_connect_errno())
 {
    echo "Failed to connect to MySQL: " . mysqli_connect_errno();
 }

可能是你的第一个错误

Answer 3

我只是寻找同一个问题的答案，我真的没找到一个...... 实际上你的代码没有错，你应该知道这一点。我相信也许某个地方有定义应该成功以这种方式工作。

我只是试着发现你应该指定数据库名称查询中的表名如下：

创建表格＆＃39; yourDatabaseName＆＃39;。＆＃39; yourTableName＆＃39; （等....）

这对我有用，直到我发现我可以在哪里定义它无需工作指定数据库名称如果有人有线索，请通知我。

创建表时出错

3 个答案: