Retaining checkbox value of a form after posting. We will use php header redirection to post back the values to our main page where checkbox is present. We will call form page as first page and action or submitted page as second page. The form data will be received by second page and after validation it is supposed to complete all the processing and in case of error it will post back the form data back to form page by using query string through address bar. To keep the second page simple we will keep only the redirection part. Here we have excluded the part which takes care if the form passes its validation and execute the actual script. We will use the example of two checkbox but same system can be extended to more than two or single checkbox in a form. Here is the code of a form with two checkboxes
Here is the code of second page, pb-chk.php
Here is the demo of the script with two checkboxes. This page will retain the status of the two checkboxes after submit. You can check or uncheck the value and test it.
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