PHP连接MySQL的2种方法以及防止乱码

PHP连接MySQL的2种方法以及防止乱码

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(" <br />".$name.$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 ("<table );

while($row = mysql_fetch_assoc($rs))

{

echo "<tr>" .

"<td>$row[theindex]</td>" .

"<td>$row[name]</td>" .

"</tr>";

}

mysql_free_result($rs);

}

echo ("</table>");

mysql_close($con);

}