PHP-不正确的整数值

我正在为我的网站建立一个演讲者表单，它基本上只是从用户那里获取输入的数据并将其放入数据库中。该网站还允许您保存或提交表格，我使用

if(isset($_POST['save'])

我遇到的问题是，当我将一些文本框留空并单击“保存”时，数据库会显示以下错误：

( ! ) PDOException: SQLSTATE[HY000]: General error: 1366 Incorrect integer value: '' for column 'phone_number' at row 1 in C:\wamp64\www\rotarywebsite\speakerform.php on line 98

我检查了代码和数据库，看看数据库中是否有我拼错的东西或其他我发现的错误。因此，基本上我希望允许用户保存表单，同时保留一些文本框为空。这是我的代码和SQL格式

PHP代码

if(isset($_POST['save'])){
         $fullname = trim($_POST['fullname']);
        $phone_number = trim($_POST['phone-number']);
        $cell_day_of = trim($_POST['cell-dayof']);
        $email = trim($_POST['email']);
        $address = trim($_POST['address']);
        $city = trim($_POST['city']);
        $state = trim($_POST['state']);
        $zip = trim($_POST['zip']);
        $titles = trim($_POST['titles']);
        $company = trim($_POST['company']);
        $affiliations = trim($_POST['affiliations']);
        $website = trim($_POST['website']);
        $topic = trim($_POST['topic']);
        $summary = trim($_POST['summary']);
        $availability = trim($_POST['availability']);
        $notice = trim($_POST['notice']);
        $guest = trim($_POST['guest']);
        $materials = trim($_POST['materials']);
        $projector = trim($_POST['projector']);
        $equipment = trim($_POST['equipment']);
        $educating = trim($_POST['educating']);
        $support = trim($_POST['support']);
        $international = trim($_POST['international']);
        $familiar = trim($_POST['familiar']);
        $member = trim($_POST['member']);
        $allergies = trim($_POST['allergies']);
        $bio = trim($_POST['bio']);
        $introduce = trim($_POST['introduce']);
        $last_need = trim($_POST['last-need']);
        $timestamp = time();
        $stmtUpdate = $handler->prepare("INSERT INTO formdata (user_id, fullname, phone_number, cell_dayof, email, address, city, state, zip, titles, company, affiliations, website, topic, summary, availability, notice, guest, materials, projector, equipment, educating, support, international, familiar, member, allergies, bio, introduce, last_need, time_stamp)VALUES(:userid, :fullname, :phone_number, :cell_dayof, :email, :address, :city, :state, :zip, :titles, :company, :affiliations, :website, :topic, :summary, :availability, :notice, :guest, :materials, :projector, :equipment, :educating, :support, :international, :familiar, :member, :allergies, :bio, :introduce, :last_need, :timestamp)");
        $stmtUpdate->bindParam(':userid', $userid, PDO::PARAM_INT);
        $stmtUpdate->bindParam(':fullname', $fullname, PDO::PARAM_STR);
        $stmtUpdate->bindParam(':phone_number', $phone_number, PDO::PARAM_INT);
        $stmtUpdate->bindParam(':cell_dayof', $cell_dayof, PDO::PARAM_INT);
        $stmtUpdate->bindParam(':email', $email, PDO::PARAM_STR);
        $stmtUpdate->bindParam(':address', $address, PDO::PARAM_STR);
        $stmtUpdate->bindParam(':city', $city, PDO::PARAM_STR);
        $stmtUpdate->bindParam(':state', $state, PDO::PARAM_STR);
        $stmtUpdate->bindParam(':zip', $zip, PDO::PARAM_INT);
        $stmtUpdate->bindParam(':titles', $titles, PDO::PARAM_STR);
        $stmtUpdate->bindParam(':company', $company, PDO::PARAM_STR);
        $stmtUpdate->bindParam(':affiliations', $affiliations, PDO::PARAM_STR);
        $stmtUpdate->bindParam(':website', $website, PDO::PARAM_STR);
        $stmtUpdate->bindParam(':topic', $topic, PDO::PARAM_STR);
        $stmtUpdate->bindParam(':summary', $summary, PDO::PARAM_STR);
        $stmtUpdate->bindParam(':availability', $availability, PDO::PARAM_STR);
        $stmtUpdate->bindParam(':notice', $notice, PDO::PARAM_STR);
        $stmtUpdate->bindParam(':guest', $guest, PDO::PARAM_STR);
        $stmtUpdate->bindParam(':materials', $materials, PDO::PARAM_STR);
        $stmtUpdate->bindParam(':projector', $projector, PDO::PARAM_STR);
        $stmtUpdate->bindParam(':equipment', $equipment, PDO::PARAM_STR);
        $stmtUpdate->bindParam(':educating', $educating, PDO::PARAM_STR);
        $stmtUpdate->bindParam(':support', $support, PDO::PARAM_STR);
        $stmtUpdate->bindParam(':international', $international, PDO::PARAM_STR);
        $stmtUpdate->bindParam(':familiar', $familiar, PDO::PARAM_STR);
        $stmtUpdate->bindParam(':member', $member, PDO::PARAM_STR);
        $stmtUpdate->bindParam(':allergies', $allergies, PDO::PARAM_STR);
        $stmtUpdate->bindParam(':bio', $bio, PDO::PARAM_STR);
        $stmtUpdate->bindParam(':introduce', $introduce, PDO::PARAM_STR);
        $stmtUpdate->bindParam(':last_need', $last_need, PDO::PARAM_STR);
        $stmtUpdate->bindParam(':timestamp', $timestamp, PDO::PARAM_INT);
        $stmtUpdate->execute();
    }

SQL

---

数据库中的所有字段都设置为NOTNULL。这意味着insert语句必须包含每个字段的有效值。您需要从那些您希望成为可选的字段中删除NOT NULL约束。

尝试从您希望保留为空的属性中删除NOT NULL约束。 乙二醇- 尝试更改-fullname varchar200非空， 电话号码int200不为空， 到- 全名varchar200， 电话号码int 200，

由于电话号码声明为int字段，因此必须为其提供有效的整数值，空字符串不是有效的整数

可以将空字符串替换为0

---

但最好的解决方案是将数据库中的这个字段更改为VARCHAR。电话号码不是真正的数字，它们通常有其他字符，例如+1 202 555-1212。

您在$\u POST['Phone\u number']中有一个空字符串。您不应该将电话号码存储为INT，而应将其存储为VARCHAR。var\u dump$\u POST['Phone-number']显示什么？@Barmar空字符串在哪里？我将尝试在错误消息中显示不正确的整数值：。这意味着你试图存储到phone_number列中的值是，这不是一个数字。我用另一个文件测试了这个值，它被设置为NOTNULL，他们发送了一个空字符串，它与NULL不一样。NOTNULL意味着必须为该字段插入一个值，否则insert语句将被拒绝。如果它以前工作过，那么您必须在每个字段中插入有效值。空字符串与NULL不同。谢谢，这解决了问题！

CREATE TABLE `formdata` (
  `id` int(11) NOT NULL,
  `user_id` int(11) NOT NULL,
  `fullname` varchar(200) NOT NULL,
  `phone_number` int(200) NOT NULL,
  `cell_dayof` int(200) NOT NULL,
  `email` varchar(200) NOT NULL,
  `address` varchar(300) NOT NULL,
  `city` varchar(300) NOT NULL,
  `state` varchar(300) NOT NULL,
  `zip` int(200) NOT NULL,
  `titles` varchar(200) NOT NULL,
  `company` varchar(200) NOT NULL,
  `affiliations` varchar(200) NOT NULL,
  `website` varchar(200) NOT NULL,
  `topic` varchar(200) NOT NULL,
  `summary` varchar(200) NOT NULL,
  `availability` varchar(200) NOT NULL,
  `notice` varchar(200) NOT NULL,
  `guest` varchar(200) NOT NULL,
  `materials` varchar(200) NOT NULL,
  `projector` varchar(200) NOT NULL,
  `equipment` varchar(200) NOT NULL,
  `educating` varchar(200) NOT NULL,
  `support` varchar(200) NOT NULL,
  `international` varchar(200) NOT NULL,
  `familiar` varchar(200) NOT NULL,
  `member` varchar(200) NOT NULL,
  `allergies` varchar(200) NOT NULL,
  `bio` varchar(200) NOT NULL,
  `introduce` varchar(200) NOT NULL,
  `last_need` varchar(200) NOT NULL,
  `time_stamp` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP
) ENGINE=MyISAM DEFAULT CHARSET=latin1;

$phone_number = trim($_POST['phone_number']);
if ($phone_number == '') {
    $phone_number = 0;
}