php连接数据库mysql数据库

查找数据

$con = mysqli_connect('localhost', 'root', '', 'mydb');
if (!$con) {
    die('数据库连接失败' . mysqli_connect_error());
} else {
    echo '数据库连接成功';
}
$sql='SELECT * FROM mysable';
//$result=mysqli_query($con,$sql);
$result=$con->query($sql);//面对对象

print_r($result);

while($row=$result->fetch_assoc()){
    print_r($row) ;
}

方法2

header('content-type:text/html;charset :utf-8');

$host='localhost';
$user='root';
$pwd='';
$dbname='hxq';
$link=mysqli_connect($host,$user,$pwd);
if(!$link){
    echo "连接数据库失败";
}
//选则数据库操作
 $db=mysqli_select_db($link,$dbname);
if(!$db){
    echo '连接数据库失败';
}

//设置mysql 返回数组字符集
mysqli_query($link,"set names utf8");

//执行sql语句
$sql='select * from 007_news ORDER BY id ASC limit 0,20';
$result=mysqli_query($link,$sql);

 while($row=mysqli_fetch_assoc($result)){

        $str=' <tr>';
        $str.="  <td> $row[id]  </td>";
        $str.="  <td> $row[title]  </td>";
        $str.="  <td> $row[author]  </td>";
        $str.="  <td> $row[source]  </td>";
        $str.="  <td> $row[hits]  </td>";
        $str.="  <td> ".date('Y-m-d H:i:s',$row['addate'])."  </td>";
        $str.="  <td>
                    <a href='javascript:;'>修改</a>&nbsp;&nbsp;&nbsp;|&nbsp;&nbsp;
                    <a href='javascript:;'>删除</a>
                </td>";

        $str.="</tr>";
        echo $str;
    }