使用php/phpMyAdmin在SQL中插入整数

Question

我试图将'$phone'存储在SQL数据库中，但是如果我在phpmyadmin中将列类型设置为'int'，则不会输入任何数据。只要我将COULMN类型更改为'varchar'，数据就可以被推送

<fieldset>
   <input placeholder="Your Phone Number" type="text" name="phone" value="<?= $phone ?>" tabindex="4">
   <span class="error"><?= $phone_error ?></span>
</fieldset>

$fname_error = $lname_error = $email_error = $phone_error = $job_error = $nameauth_error = $privacy_error = $decline_error = "";
$fname = $lname = $email = $phone = $message = $jobtitle = $nameauth = $success = $privacy = "";

if (empty($_POST["phone"])) {
$phone_error = "Phone is required";
  } else {
 $phone = test_input($_POST["phone"]);
 // check if e-mail address is well-formed
  if (!preg_match("/^(\d[\s-]?)?[\(\[\s-]{0,2}?\d{3}[\)\]\s-]{0,2}?\d{3} 
  [\s-]?\d{4}$/i",$phone)) {
  $phone_error = "Invalid phone number"; 
  }
 }`

if ($privacy == 'agree') {

if ($fname_error == '' and $lname_error == '' and $email_error == '' and $phone_error == '' and $privacy_error == '' and $nameauth_error == '' and $job_error == '') 
    {   
        $sql = "INSERT INTO data (phoneNo) VALUES ('$phone');";
        mysqli_query($con, $sql);
        $success = "Enjoy your game!!";
        $fname = $lname = $email = $phone = $message = $jobtitle = $nameauth = "";
    }   

} else if ($privacy == '') {
    $privacy_error = "Please Accept or Decline Our Policy";
} else if ($privacy == 'disagree') {
    $decline_error = "Please Accept Our Privacy Policy to Continue";
}   

}  

是否必须将INT值初始化为=0；？

Answer 1

您必须强制转换它才能将其用作int。

$phone = (int) $phone.

此外，电话号码总是字符串，因为它们可能有“+”或以“0”开头。