条目未出现在 phpMyAdmin 中

Question

几个小时以来，我一直在尝试此代码的不同变体。我是新手。我似乎无法弄清楚为什么没有任何内容被插入到 phpMyAdmin 数据库中。我已验证我已连接到数据库（使用下面的 echo 和 error 函数）。我知道 mysql_ 正在被弃用，但请帮助兄弟。我的问题又来了：为什么没有插入任何东西？我正在使用 PHP 4.0.10.7 (Godaddy)。

<?php

$first_name = $_POST['first_name'];
$last_name = $_POST['last_name'];
$email = $_POST['email'];
$password = $_POST['password'];
$phone_number = $_POST['phone_number'];


define('dbusername', 'someusername');
define('dbpassword', 'somepassword');
define('dbhost', 'localhost');
define('dbname', 'somedb');

if (($first_name=="")||($last_name=="")||($email=="")||($password=="")||($phone_number=="")) 
        { 
        echo "All fields are required, please fill <a href='home.html'>the form</a> again."; 
        die();
        } 

$connect = mysql_connect(dbhost,dbusername,dbpassword) or die("Could not connect. " . mysql_error());

$db = mysql_select_db(dbname, $connect);

$queryemail = "SELECT * FROM User WHERE email = '$email'";

$insertemail = "INSERT INTO User (email,password,first_name,last_name,phone_number) VALUES ('$email','$password','$first_name','$last_name','$phone_number')"; 

echo $insertemail;
mysql_close($connect);

header("Location: account_summary.html");

?>

回应 $insertemail returns

INSERT INTO User (email,password,first_name,last_name,phone_number) VALUES ('asdfsda@sdfa','','sadf','asdf',''). The password doesn't show up, but neither does the phone number. Actual Form I'm testing on is located at Desotocab.com. Thank you!

根据要求：

<form action="login.php" method="post">
  
  <label>First Name: *</label><input type="text" name="first_name"/><br/>
  <label>Last Name: *</label><input type="text" name="last_name"/><br/>
  <label>Email: *</label><input type="email" name="email"/><br/>
  <label>Password: *</label><input type="password" name="password"/><br/>
  <sub>Password must be 8 characters minimum</sub><br/>
  <label>Phone Number: *</label><input type="text" name="phone_number"/><br/>

  <input type="submit" value="Sign Up"/>

</form>

用户 Table 架构：

Answer 1

将上面的代码从 MySQL compatible 更改为 MySQLi compatible

然后使用

$result = mysqli_query($connect, $insertemail);

之前

echo $insertemail;

条目未出现在 phpMyAdmin 中

Entries not appearing in phpMyAdmin

php

mysql

sql-insert