表单仅自动提交一次并重新加载同一页面

Question

I have created a form in php which has to fetch data from table1 and dump it into table2 every time user clicks on a link (link provided in a different page). I have written code in a php page (assume eg -> test.php) including html as well. I tried submitting the form onload of the page using Javascript ( document.formname.submit ) but it keeps on going in an infinite loop and keeps inserting data in table2 again and again.

How do I prevent this and auto form submit only once and still stay on the same PHP (ie test.php) page, which also contains the code for displaying detail view of the inserted data in table2 ?

Answer 1

That's because simply calling submit() on a form fill cause a full page reload. If you want to keep the current approach, you should instead use AJAX call to submit the data from that form.

Read here for more details. The article explains how to do both GET and POST requests using JS.

That sad, your solution seems somewhat ... emm ... hairy. Why exactly are you copying data from no table top another?

Answer 2

Before JavaScript check this condition by using form name.

 if ( ! isset($_POST['main']) )

Here main is form name.