stop duplicate entry to db on refresh the page

[zakia]

Stop to re enter data into db after refresh the browser
i used header (redirect to page ) but wen user press back button from browser and submit button is clicked data is entered again to db

[mcs0801]

hmm well, You should put the file as process.php file in the form action attributes, in process.php file you have to put the query for insertion record, after you insertion query, redirect the page to thanks.html or other page where you want to go.when user will click on the back via browser , he will be able to show your form, he will not be able to execute the page as process.php file . That's it

Let me know if you find any issue .