want to process files inside the folder subdirectories

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How to process files inside the folder sub directories using php script.Actually I want the image files inside each sub directories residing in my server itself to process and save to another location and save the folder name & file name in the database. Can anyone help and give a sample script on how to operate this...the folder structure may be something like this\[code\]parent folder sub-folder1 img1 img2 img3 . . img'n' sub-folder2 img1 img2 img3 . . img'n' sub-folder3 img1 img2 img3 . . img'n' . . . sub-folder'n'\[/code\]Also if on the process of copying and writing to database how can show a progress barthanks in advance