Question

我是这个网站的新手，但我的代码出了问题。

我从PHP开始使用OOP，并且我正在努力学习get和set。

我用一个值填充我的集合，但是当我在其他类中请求它时，我无法获得该值。

这是我的代码：

foreach ($_SESSION['order'] as $row) {


                $invoice->setInvoiceBeginDate($row['beginDatum']);
                $invoice->setInvoiceEndDate($row['eindDatum']);
                $invoice->setDeliveryLocation($row['locatie']);
                $invoice->insertInvoice();

                $invoice->setLastInsertedInvoice_ID($invoice->sqlSelect("invoice_ID", "invoice", "", "","","1")->fetch(PDO::FETCH_COLUMN));
                $invoice->setCarId($row['car']);

                //here is where the error is coming from
                if ($order->insertOrder()) {

                    $status = 1;

                } else {

                    $status = 0;

                    $invoice->deleteInvoice();

                }

            }

和我的2个班级：

class Invoice extends DynamicSql
{

private $invoiceBeginDate;
private $invoiceEndDate;
private $deliveryLocation;
private $invoiceId;
private $lastInsertedId;
private $carId;

public function insertInvoice()
{

    if ($this->sqlInsert(
        "invoice",
        array(
            "invoiceBeginDate" => $this->getInvoiceBeginDate(),
            "invoiceEndDate" => $this->getInvoiceEndDate(),
            "deliveryLocation" => $this->getDeliveryLocation()
        )
    )) {

        return true;

    } else {

        return false;

    }

}

public function deleteInvoice()
{

    if($this->sqlDelete(
        "invoice",
        array(
            ["invoice_ID" => $this->getLastInsertedInvoice_ID()]
        )
    ))
    {
        return true;
    }
    else
    {
        return false;
    }

}

public function setInvoiceBeginDate($value){
    $this->invoiceBeginDate = $value;
}

public function getInvoiceBeginDate(){
    return $this->invoiceBeginDate;
}

public function setInvoiceEndDate($value){
    $this->invoiceEndDate = $value;
}

public function getInvoiceEndDate(){
    return $this->invoiceEndDate;
}

public function setDeliveryLocation($value){
    $this->deliveryLocation = $value;
}

public function getDeliveryLocation(){
    return $this->deliveryLocation;
}

public function setInvoiceId($value){
    $this->invoiceId = $value;
}

public function getInvoiceId(){
    return $this->invoiceId;
}

public function setLastInsertedInvoice_ID($value){
    $this->lastInsertedId = $value;
}

public function getLastInsertedInvoice_ID(){
    return $this->lastInsertedId;
}

public function setCarId($value){
    $this->carId = $value;
}

public function getCarId(){
    return $this->carId;
}

}

class Order扩展Invoice {

public function insertOrder(){

    echo $this->getLastInsertedInvoice_ID(), $_SESSION['user_session'], $this->getCarId();

    $this->sqlInsert("orders",
        array(
            "invoiceId" => $this->getLastInsertedInvoice_ID(),
            "user_ID" => $_SESSION['user_session'],
            "carId" => $this->getCarId()
        )
    );

}


}

这是我的错误，invoiceId为空：

27（27来自$ _SESSION [＆＃39; user_session＆＃39;]其他2未设置由于某种原因）致命错误：未捕获的异常＆＃39; PDOException＆＃39;同消息＆＃39; SQLSTATE [23000]：完整性约束违规：1048列＆＃39; invoiceId＆＃39;不能为空＆＃39;在 C：\ xampp \ htdocs \ TestExame \ includes \ sqlQuerry.php：177堆栈跟踪：＃0 C：\ XAMPP \ htdocs中\ TestExame \包括\ sqlQuerry.php（177）： PDOStatement-＆gt; execute（）＃1 C：\ XAMPP \ htdocs中\ TestExame \包括\ sqlQuerry.php（662）： DynamicSql-＆gt; sqlInsert（＆＃39; orders＆＃39;，Array）＃2 C：\ xampp \ htdocs \ TestExame \ cart.php（54）：Order-＆gt; insertOrder（）＃3 {main} 在第177行的C：\ xampp \ htdocs \ TestExame \ includes \ sqlQuerry.php中抛出

我希望有人可以帮助我。

当我填写它时，我得到的是空的？

0 个答案: