我正在尝试将手机号码插入数据库，但它不是手机号码而是保存为 2147483647

Question

我正在尝试将用户信息插入数据库。我可以添加信息，我面临的唯一问题是，无论我在表单中提供什么 10 位数字mob_number，pmob_number都将像2147483647在数据库服务器中一样获取存储。我知道这是非常基本的，我才刚刚开始。提前致谢 ：-）

<?php
$servername = "localhost";
$username   = "root";
$password   = "";
$conn = mysqli_connect($servername, $username, $password) or die("unable to connect to host");
$sql = mysqli_select_db($conn, 'vcet') or die("unable to connect to database");
//code to insert into db...
$user_name    = $_POST['user_name'];
$roll_number  = $_POST['roll_number'];
$user_batch   = $_POST['user_batch'];
$user_from    = $_POST['user_from'];
$user_year    = $_POST['user_year'];
$user_level   = $_POST['user_level'];
$email_id     = $_POST['email_id'];
$F_name       = $_POST['F_name'];
$m_name       = $_POST['m_name'];
$g_name       = $_POST['g_name'];
$mob_number   = $_POST['mob_number'];
$addressline1 = $_POST['addressline1'];
$addressline2 = $_POST['addressline2'];
$city         = $_POST['city'];
$pmob_number  = $_POST['pmob_number'];
$land_number  = $_POST['land_number'];
$cutoff       = $_POST['cutoff'];
$dept         = $_POST['dept'];
$medium       = $_POST['medium'];
$locality     = $_POST['locality'];
$intrest      = $_POST['intrest'];
$scholar      = $_POST['scholar'];
$income       = $_POST['income'];
$user_caste   = $_POST['user_caste'];
$user_admit   = $_POST['user_admit'];
$user_stay    = $_POST['user_stay'];
if (!filter_var($email_id, FILTER_VALIDATE_EMAIL)) {
    echo "Invalid email format";
} else {
    //executes the rest of the code
    if (!preg_match('/^\d{10}$/', $pmob_number)) // phone number is valid
        {
        echo "Phone number invalid !";
    } else // phone number is  valid
        {
        $msg        = "";
        $num_length = strlen((string) $pmob_number);
        if ($num_length != 10) {
            echo "Enter a valid number";
        } else {
            $user_info = "INSERT INTO studentinfo" . "     (user_name,roll_number,user_batch,user_from,user_year,user_level,email_id,F_name,m_name,g_name,mob_number,addressline1,addressline2,city,pmob_number,land_number,cutoff,dept,medium,locality,intrest,scholar,income,user_caste,user_admit, user_stay)" . "VALUES ('$user_name', '$roll_number','$user_batch','$user_from','$user_year','$user_level','$email_id','$F_name','$m_name','$g_name','" . $mob_number . "','$addressline1','$addressline2','$city','$pmob_number','$land_number','$cutoff','$dept','$medium','$locality','$intrest','$scholar','$income','$user_caste','$user_admit','$user_stay')";
            if (!mysqli_query($conn, $user_info)) {
                die('Error: ' . mysqli_error($conn));
            }
            echo "Your information was added to the database.";
            mysqli_close($conn);
        }
    }
}
?> 
```

Answer 1

我正在尝试将手机号码插入数据库，但它不是手机号码而是保存为 2147483647

看起来您的数据库架构错了。确保列你把你的电话号码数据到相当的字符串类型（即VARCHAR），并没有数字（不INTEGER，BIGINT，DECIMAL等）