WordPress中的自定义表单并将值存储到自定义数据库中(Custom form in WordPress and store values into custom database)

 我有一个简单的表单，在我的WordPress网站中有2个文本字段。 我创建了一个新的页面模板并添加了以下HTML代码： 
 
 这是HTML： 
 
<form action="<?php the_permalink(); ?>" id="customform" method="post">
Field 1: <input type="text" name="field1" id="field1">
Field 2: <input type="text" name="field2" id="field2">
<input type="submit" name="submit" id="submit">
</form>
 
 现在我想要实现的是，无论用户输入什么，它都会将它存储到mySQL （ 与WordPress在同一个数据库中 ），例如表test_form 。 
 
 我该如何实现这一目标？ 

I have a simple form with 2 text fields in my WordPress site. I created a new page template and added the following HTML code:
 
This is the HTML:
 
<form action="<?php the_permalink(); ?>" id="customform" method="post">
Field 1: <input type="text" name="field1" id="field1">
Field 2: <input type="text" name="field2" id="field2">
<input type="submit" name="submit" id="submit">
</form>
 
Now all I want to achieve, is that whatever the user inputs, it stores it to mySQL (which is in the same database as WordPress), in the table test_form, for example.
 
How do I achieve this? 

原文：https://stackoverflow.com/questions/26211294