PHP连接MySQL的2种方法小结以及防止乱码_php技巧

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;<BR>$mysqli = new mysqli("127.0.0.1","用户名", 密码","库名");<BR>$query="select * from  表 order by theindex desc";<BR>$mysqli->query("SET NAMES gb2312");//注意此处不加会乱码<BR>$result = $mysqli->query($query);</P><P> //printf() 函数输出格式化的字符串<BR>while(list($name, $theindex) = $result->fetch_row())<BR>        echo(" <br />".$name.$theindex);</P><P>$con = mysql_connect("localhost", "用户名", "密码");<BR>if ($con) {<BR>        mysql_query("set names 'gb2312'");<BR>        mysql_select_db("库名", $con);//注意此处不加会乱码<BR>                                $rs = mysql_query("select * from  表 order by theindex desc;", $con);<BR>                                if ($rs) {<BR>                                  echo ("<table border="1">");<BR>                                        while($row = mysql_fetch_assoc($rs)) <BR>                                        {<BR>                                                echo "<tr>" .<BR>                                                "<td><b style="color:transparent">来&源gao@dai!ma.com搞$代^码%网</b><img>搞gaodaima代码</img>$row[theindex]</td>" .<BR>                                                "<td>$row[name]</td>" .<BR>                                                "</tr>";<BR>                                        }<BR>                                        mysql_free_result($rs);<BR>                                        }<BR>                                        echo ("</table>");<BR>        mysql_close($con);<BR>}<BR>

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