List files and directories inside the specified path in PHP

List of files:

• 88_2008.pdf
• 4_2008.pdf
• 60_2008.pdf
• 2008.pdf
• listagem.php
• file_index.htm
• 84_2008.pdf
• 43_2008.pdf
• 1_2008.pdf
• 26_2008.pdf
• 14_2008.pdf