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If you are allowing the user to delete the list of records and they are more in numbers then it will hard for the user to delete the specific record one by one and consumes more time.
To make it easier you can allow multiple selections of records and delete all selected list either with the only PHP or with jQuery and AJAX.
In this tutorial, I am using jQuery AJAX to remove records.
When uploading the image with Dropzone then it will create a thumbnail of it for preview but it will show a blank thumbnail while uploading the non-image file like – text, word, pdf files.
This will be handled by using the dropzone option where check the image type and define the new default thumbnail image.
Select2 is a jQuery plugin that extends the functionality of a simple HTML drop-down element by allowing to search the list, add the image with options, navigate to the option with arrow keys, etc.
It comes with AJAX support which you can call it in the same way as $.ajax in jQuery. This allows you to fetch options from the server when the user clicks on the select element or searches for a value in the search box.
In this tutorial, I show how you load MySQL database data remotely in Select2 with AJAX.
With the Dropzone.js script you can easily implement drag and drop file upload functionality on your website.
But by default, it only allows file uploading with no file removal option.
For enabling the remove link following with the uploaded file preview require to explicitly initialize the dropzone and define the options.
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