List all uploaded file with Delete option

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Hello guys,

Today, one of my friend asked me to display the uploaded files from folder with delete option. so i write below code, which i gonna share with u people.

so here, i'm creating delete button for each file with unique id(filename), when user press on button i'm passing id(filename) to del() function.
so in javascript, del() function i'm getting filename and that name i'm sending to delete.php file through ajax post method.