致命错误：在C:\qbapi\quickbooks php master\docs中对空成员函数getFreeFormNumber（）的调用\

我当时正在编写Keith Palmer Quickbooks PHP API。这一切都很好，并连接。示例查询以数组形式返回结果。我想做的是运行一个mysqli insert语句，它将运行结果数组并将记录保存在mysqli表中

$customers = $CustomerService->query($Context, $realm, "SELECT * FROM Customer");


foreach ($customers as $Customer)
{

//First, we will retrieve the ID, and strip out any spaces/characters.  
$id = $Customer->getId();
$str = preg_replace("/[^0-9]/","",$id);

    //Insert customer into customer tables. 
        $sql = "INSERT INTO Customers (CustomerID__kp, CustomerName, CustomerAddress1, CustomerCity, CustomerCounty, CustomerPostcode, CustomerTelephone) 

            VALUES ('".$str."', 
                    '".$Customer->getFullyQualifiedName()."',
                    '".$Customer->getBillAddr(0)->getLine1()."',
                    '".$Customer->getBillAddr(0)->getCity()."',
                    '".$Customer->getBillAddr(0)->getCountrySubDivisionCode()."',
                    '".$Customer->getBillAddr(0)->getPostalCode()."',
                    '".$Customer->getPrimaryPhone(0)->getFreeFormNumber()."'

                    )
                    ON DUPLICATE KEY 
                    UPDATE CustomerName = '".$Customer->getFullyQualifiedName()."',
                    CustomerAddress1 = '".$Customer->getBillAddr(0)->getLine1()."',
                    CustomerCity = '".$Customer->getBillAddr(0)->getCity()."',
                    CustomerCounty = '".$Customer->getBillAddr(0)->getCountrySubDivisionCode()."',
                    CustomerPostcode = '".$Customer->getBillAddr(0)->getPostalCode()."',
                    CustomerTelephone = '".$Customer->getPrimaryPhone(0)->getFreeFormNumber()."'
                    ";

        $conn->query($sql);

}

这是我的代码，它从Quickbooks中获取记录并将其保存在mysqli表中

$customers = $CustomerService->query($Context, $realm, "SELECT * FROM Customer");


foreach ($customers as $Customer)
{

//First, we will retrieve the ID, and strip out any spaces/characters.  
$id = $Customer->getId();
$str = preg_replace("/[^0-9]/","",$id);

    //Insert customer into customer tables. 
        $sql = "INSERT INTO Customers (CustomerID__kp, CustomerName, CustomerAddress1, CustomerCity, CustomerCounty, CustomerPostcode, CustomerTelephone) 

            VALUES ('".$str."', 
                    '".$Customer->getFullyQualifiedName()."',
                    '".$Customer->getBillAddr(0)->getLine1()."',
                    '".$Customer->getBillAddr(0)->getCity()."',
                    '".$Customer->getBillAddr(0)->getCountrySubDivisionCode()."',
                    '".$Customer->getBillAddr(0)->getPostalCode()."',
                    '".$Customer->getPrimaryPhone(0)->getFreeFormNumber()."'

                    )
                    ON DUPLICATE KEY 
                    UPDATE CustomerName = '".$Customer->getFullyQualifiedName()."',
                    CustomerAddress1 = '".$Customer->getBillAddr(0)->getLine1()."',
                    CustomerCity = '".$Customer->getBillAddr(0)->getCity()."',
                    CustomerCounty = '".$Customer->getBillAddr(0)->getCountrySubDivisionCode()."',
                    CustomerPostcode = '".$Customer->getBillAddr(0)->getPostalCode()."',
                    CustomerTelephone = '".$Customer->getPrimaryPhone(0)->getFreeFormNumber()."'
                    ";

        $conn->query($sql);

}

？>

我的问题是我得到了这个错误：

致命错误：在C:\qbapi\quickbooks php master\docs中对空成员函数getFreeFormNumber（）的调用\

---

当我运行客户查询时，代码将客户保存在我的quickbooks中，并保存在我的mysqli中。但是由于某种原因，我得到了上面的错误

首先要测试值，然后执行函数调用并将结果分配给变量。然后在查询中使用变量：

foreach ($customers as $Customer)
{

//First, we will retrieve the ID, and strip out any spaces/characters.  
$id = $Customer->getId();
$str = preg_replace("/[^0-9]/","",$id);

// test customer phone number
if(isset($Customer->getPrimaryPhone(0))){
    $CustomerTelephone = $Customer->getPrimaryPhone(0)->getFreeFormNumber();
} else {
    $CustomerTelephone = '';
}

    //Insert customer into customer tables. 
        $sql = "INSERT INTO Customers (CustomerID__kp, CustomerName, CustomerAddress1, CustomerCity, CustomerCounty, CustomerPostcode, CustomerTelephone) 

            VALUES ('".$str."', 
                    '".$Customer->getFullyQualifiedName()."',
                    '".$Customer->getBillAddr(0)->getLine1()."',
                    '".$Customer->getBillAddr(0)->getCity()."',
                    '".$Customer->getBillAddr(0)->getCountrySubDivisionCode()."',
                    '".$Customer->getBillAddr(0)->getPostalCode()."',
                    '".$CustomerTelephone."'

                    )
                    ON DUPLICATE KEY 
                    UPDATE CustomerName = '".$Customer->getFullyQualifiedName()."',
                    CustomerAddress1 = '".$Customer->getBillAddr(0)->getLine1()."',
                    CustomerCity = '".$Customer->getBillAddr(0)->getCity()."',
                    CustomerCounty = '".$Customer->getBillAddr(0)->getCountrySubDivisionCode()."',
                    CustomerPostcode = '".$Customer->getBillAddr(0)->getPostalCode()."',
                    CustomerTelephone = '".$CustomerTelephone."'
                    ";

        $conn->query($sql);

}

警告

---

说。即使是这样也不安全

$Customer->getPrimaryPhone（0）

为空或空，您需要修复该问题。说。即使是这样也不安全！当我从quickbooks中获取记录时，并不是所有记录都保存了电话号码。所以有些记录有电话号码，有些没有。在foreach循环$Customer->getPrimaryPhone（0）中，对于没有联系人号码的记录，可能为null，但如果联系人号码为空，则它将工作。我仍然想保存记录，但记录是否有联系电话。谢谢。如果答案解决了你的问题，请考虑接受答案。下面是如何返回此处并对勾号/复选标记执行相同操作，直到其变为绿色。这将通知社区，找到了解决方案。否则，其他人可能会认为问题仍然悬而未决，并可能希望发布（更多）答案。您将获得积分，并鼓励其他人帮助您。欢迎来到Stack！谢谢你的回复。我刚刚加上了你查电话号码的密码。当我点击触发代码的按钮时，我得到服务器错误。状态代码：500内部服务器错误…我之前确实添加了php（isset），但它给了我服务器错误。如果您回显$Customer->getPrimaryPhone（0），会发生什么情况？