$ _POST并使用html提交按钮重定向

Question

I have a html form that has a series of radio groups along with php code that insert the radio group into a table. The insert works if I do not have a link to the next page, but if the link is in the following :

<form name ="input" action="demopg2.php" method="post"> does not insert but links to the next page.

<form name ="input" action="" method ="post"> inserts the data but does not link to the next page

the submit button code is:

 <input type="submit"   class ="button" name="submit" value="Submit" />

Answer 1

It sounds like you have:

• A script which can both display a form and insert submitted data
• Another script which shows the next page

You need to change the logic so that either:

• The "insert submitted data" logic is moved from the first script to the second script or
• The first script, if it has inserted data, redirects (with a Location header) to the second script instead of displaying the form

The second approach is generally the better one as it is more easily extended to give you a third possible output: Displaying the form with error messages if bad data is submitted.