php的mysql配置
报错信息：class 'mysqli' not found in
answer:
1.在conf/php.ini中,在vim用/php_mysql搜索到extension=php_mysql.dll,去掉前面的;,
同时在下面增加extension=php_mysqli.dll;
注意后面那个dll多了个i
2./extension_dir检查路径是否正确;
3.找到ext/目录,把其中的php_mysql.dll,php_mysqli.dll两个文件copy to %systemroot%/system32下.
4.重启服务
连接数据库
 //在conf/php.ini中,在vim用/php_mysql搜索到extension=php_mysql.dll,去掉前面的;,同时在下面增加extension=php_mysqli.dll;
$mysqli = new mysqli(127.0.0.1,用户名, 密码,库名);
$query=select * from  表 order by theindex desc;
$mysqli->query(set names gb2312);//注意此处不加会乱码
$result = $mysqli->query($query);
 //printf() 函数输出格式化的字符串
while(list($name, $theindex) = $result->fetch_row())
        echo(
.$name.$theindex);
$con = mysql_connect(localhost, 用户名, 密码);
if ($con) {
        mysql_query(set names 'gb2312');
        mysql_select_db(库名, $con);//注意此处不加会乱码
                                $rs = mysql_query(select * from  表 order by theindex desc;, $con);
                                if ($rs) {
                                  echo (
);
                                        while($row = mysql_fetch_assoc($rs))
                                        {
                                                echo .
                                                $row[theindex] .
                                                $row[name] .
;
                                        }
                                        mysql_free_result($rs);
                                        }
                                        echo (
);
        mysql_close($con);
}
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