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A slider is a good way to avoid bad input from the user if you want them to pick values within the range.
To add slider control I am using jQuery UI slider.
In this tutorial, I show how you can use the jQuery UI slider to filter MySQL database records using jQuery AJAX and PHP.
If the form is already submitted and the user tries to refresh the webpage then the browser will attempt to resubmit the form.
If you are allowing the user to fill and submit the form for insert data. In this case, if the user refreshes the page then the data is reinserted into the MySQL database table if some action does not perform for preventing it.
In this tutorial, I show you some ways by using which you can avoid the page resubmit.
When an AJAX request is sent to fetch records from the server then it may take time depending on the data processing or the number of records.
If the AJAX request takes more time then at the Client-side there is no visible change is been displayed and the user doesn’t know whether its request is in progress or not.
You can display a loading image or text message on the page when the AJAX request is in progress and hide it after getting a response.
In the demonstration, I am displaying a loading image when sending an AJAX request.
There are many things you can do with AJAX to improve the user experience, for example, Add, edit or delete the record and update the layout without reloading the page.
With only PHP you can easily delete records but require to submit the page or send value by URL and according to it delete a record.
This works and removes the record but it reloads the page every time.
You can do this with jQuery AJAX where you need to pass the record id from AJAX which needs to delete.
In the example, I am creating the HTML table which shows the list of records with a delete button. When the button gets clicked then remove the record and also remove the HTML table row with fadeOut() effect.
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