我试图将数据插入到两个表上的PhpMyAdmin到bitnami-wordpress，但它不工作.我使用的模板以及.模板成功插入数据，但我的不工作.请帮助我找出我做错了什么.
这里是模板

<?php
if($_POST['Submit'])
{
 $wpdb;
 $membername=$_POST['membernametextbox'];
 $phone=$_POST['phonetextbox'];
 $email=$_POST['emailtextbox'];
 $date=$_POST['datetextbox'];
 $paymenttype=$_POST['paymenttypetextbox'];
 
 if ($wpdb->insert('newmembers', array('membername'=>$membername,'phone'=>$phone,'email'=>$email))==false)wp_die('Database is down try again later!');
 
 else
     /* get_var method returns a single value whereas get_results method returns an array */
     $membernumber=$wpdb->get_var("Select max(membernumber) from newmembers");
     
     $wpdb->insert('subscription',array('date'=>$date,'paymenttype'=>$paymenttype,'membernumber'=>$membernumber));
     
     echo '<br><br> Data inserted succesfully!';
}
get_footer();
?>

字符串
这是我的版本。我的表名是“组织”和“捐赠者”。

<?php
if($_POST['Submit'])
{
 $wpdb;
 $donorname=$_POST['donornametextbox'];
 $paymenttype=$_POST['paymenttypetextbox'];
 $organizationtype=$_POST['organizationtypetextbox'];
 $organizationname=$_POST['organizationnametextbox'];
 $address1=$_POST['address1textbox'];
 
 if ($wpdb->insert('organization', array('organizationtype'=>$organizationtype,'organizationname'=>$organizationname,'address1'=>$address1))==false)wp_die('Database is down try again later!');
 
 else
     /* get_var method returns a single value whereas get_results method returns an array */
     $organizationid=$wpdb->get_var("Select max(organizationid) from organization");
     
     $wpdb->insert('donor',array('donorname'=>$donorname,'paymenttype'=>$paymenttype,'organizationid'=>$organizationid));
     
     echo '<br><br> Data inserted succesfully!';
}
get_footer();
?>

型