List files and directories inside the specified path in PHP

List of files:

• 01_walter_letter_pg_01.pdf
• 06_AJALA_pgs_28_43.html
• 07_ORYNBEKOV_pgs_44_53.pdf
• 08_QUINTERO_pgs_54_68.html
• 09_JOSEPH_pgs_69_81.html
• 04_LIMA_pg_08_17.pdf
• 2022_v1.epub
• 02_new_template_pgs02_04.pdf
• 07_ORYNBEKOV_pgs_44_53.html
• 03_AMT_pgs05_07.pdf
• Binder1.pdf
• listagem.php
• file_index.htm
• 03_AMT_pgs05_07.html
• 09_JOSEPH_pgs_69_81.pdf
• 05_BABATUNDE_pgs_18_27.html
• 06_AJALA_pgs_28_43.pdf
• 02_new_template_pgs02_04.html
• 08_QUINTERO_pgs_54_68.pdf
• 01_walter_letter_pg_01.html
• walter_letter_pg_01.pdf
• 05_BABATUNDE_pgs_18_27.pdf
• 04_LIMA_pg_08_17.html
• final.pdf