1、連接（mysqli方式）

$con = new mysqli("localhost", "username", "password", "databasename");

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2、查詢

    $con->query('set names utf8;'); 
    $sql = "SELECT * FROM tablename";  
    $result = $con->query($sql);  
    $data=array();
    while ($tmp=mysqli_fetch_assoc($result)) {
        $data[]=$tmp;
    }
    var_dump($data);

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3、插入

    $con->query('set names utf8;');
    $sql="INSERT INTO tablename (name,telphone) VALUES ('name','telphone')";
    if($result = $con->query($sql)){
        echo "成功";
    }else{
        echo "失敗";
    }