PHP链接mysql数据库

$conn = mysql_connect ( "链接地址" , "账号" , "密码" );
$result = mysql_db_query ( "数据库" , "select * from <表名>;" , $conn );
$row = mysql_fetch_row ( $result );
echo $row[0]; //输出
mysql_free_result ( $result );
mysql_close ( $conn );