如何获取wordpress插件文件中提交的表单数据？

Question

I want to submit a form which contains a textarea to my Wordpress plugin. But I don't know exactly HOW. I want my plugin to fetch the $_POST variable after the submission of the form that I create for it. The other idea would an setting fields. Having setting fields to save some data in it then accessing them via plugin. All in all, I want to be able to access the setting form, input, textarea and other form elements values through my Wordpress plugin. I know the question sounds novice, I couldn't find any search result regarding my question.

Answer 1

I would create a function in your plugin and add it into the init action hook. This is a great time to intercept $_POST data and do with it what you wish.

function intercept_post_data() {
    // do things with the $_POST array
}
add_action( 'init', 'intercept_post_data' );

However, you also have the option to POST directly to your plugin by changing the form's action to point to a plugin file that handles form processing. (I recommend the first option).