List files and directories inside the specified path in PHP

List of files:

• 80_2009.pdf
• 9_2009.pdf
• 58_2009.pdf
• 43_2009.pdf
• 1_2009.pdf
• 73_2009.pdf
• listagem.php
• file_index.htm
• 2009.pdf
• 4_2009.pdf
• 23_2009.pdf
• 35_2009.pdf