mysqli 准备好的语句类

Question

我正在为 mysql 语句构建我的第一个类，以使我自己的查询更容易。基本上我们会这样做。

Query::set_config($host,$username,$password);

if( Query::is_database("database_name") ) {
    Query::get_results("SELECT * FROM REGISTRY WHERE `name`=? AND `last`=?",[
        "s"=>"firstname",
        "s"=>"lastname"
    ]);
}

我的问题是prepared和not，以及procedural和OO之间的细微差别。

这是get_results背后的底层代码

/*Load Results from SQL Query*/ 
public static function results($sql,$prepared=null) {
    if($is_configurated) {
        self::connect();
        $rows = array();
        if($prepared === null) {
            $query = mysqli_query(self::$conn,$sql);
            if(!$query) 
                echo mysqli_error(self::$conn);

            while($r = mysqli_fetch_array($query)) {
                $rows[] = $r;
            }
        }
        else 
        {
            $stmt = mysqli_prepare(self::$conn,$sql);
            /*
                i   corresponding variable has type integer
                d   corresponding variable has type double
                s   corresponding variable has type string
                b   corresponding variable is a blob and will be sent in packets
            */
            foreach($prepared as $type=>$param) {
                if(strlen($type) > 1) {
                    self::$errors[]="Only one type is allowed";
                    continue;
                } else {
                    mysqli_stmt_bind_param($stmt,$type,$param);
                }
            }

            /*STUCK HERE NOW*/
            mysqli_stmt_execute($stmt);
            while (mysqli_stmt_fetch($stmt)) {
                $rows[] = $r;
            }

        }
        self::disconnect();
        return $rows;
    } else return "NO CONFIGURATED CONNECTION";
}

我写了我卡住的地方，这就像普通的mysqliwhilemysqli_fetch_row 还是什么。 PHP.net 文档不是很流畅，也不是很简单。我只需要帮助来做这件事，看看我的代码中是否有任何小缺陷。我需要从结果中返回行。

这是正确的吗？

        /*Load Results from SQL Query*/ 
    public static function results($sql,$prepared=null) {
        if($is_configurated) {
            self::connect();
            $rows = array();
            if($prepared === null) {
                $query = mysqli_query(self::$conn,$sql);
                if(!$query) 
                    echo mysqli_error(self::$conn);

                while($r = mysqli_fetch_array($query)) {
                    $rows[] = $r;
                }
            }
            else 
            {
                $stmt = mysqli_prepare(self::$conn,$sql);
                /*
                    i   corresponding variable has type integer
                    d   corresponding variable has type double
                    s   corresponding variable has type string
                    b   corresponding variable is a blob and will be sent in packets
                */
                foreach($prepared as $type=>$param) {
                    if(strlen($type) > 1) {
                        self::$errors[]="Only one type is allowed";
                        continue;
                    } else {
                        mysqli_stmt_bind_param($stmt,$type,$param);
                    }
                }

                /*STUCK HERE NOW*/
                mysqli_stmt_execute($stmt);
                $stored = mysqli_store_result($stmt);
                if( count($stored) >= 1) {
                    while ($data = mysqli_stmt_fetch($stmt)) {
                        $rows[] = $data;
                    }
                }

            }
            self::disconnect();
            return $rows;
        } else return "NO CONFIGURATED CONNECTION";
    }

Answer 1

如果您想在准备好的语句上使用 mysqli 函数，请查看mysqli_stmt_get_result 函数。但是，此功能仅适用于 mysqlnd 驱动程序。