Php code help

[system]

Hi:

     I have upload a file, after uploading it is saved in a folder "upload" and its contents are saved in phpmy sql

database. Now i want to delete this file both form folder and database, can anyone help me about deleting?
Uploading code is here:

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File Name	File Size	File Type	Action
1 (38).jpg	127712Kb	image/jpeg	Edit   Delete
1 (37).jpg	78285Kb	image/jpeg	Edit   Delete
Chat.doc	28672Kb	application/msword	Edit   Delete
Msgbox.txt	2466Kb	text/plain	Edit   Delete
Msgbox.txt	2466Kb	text/plain	Edit   Delete
Msgbox.txt	2466Kb	text/plain	Edit   Delete
Msgbox.txt	2466Kb	text/plain	Edit   Delete
Msgbox.txt	2466Kb	text/plain	Edit   Delete

<form action="upload_file.php" method="post"

enctype=“multipart/form-data”>
Filename:

                  Your Comentes & Chating is here:

                        zubair:hello

                        shahid:kya hal ha

                        zubair:thek

                        Shahid:Slam

Enter Name:

Enter comments:

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