15. Which PHP function retrieves the last modified time of a file?

Which PHP function returns the parent directory of a file?

A). dirname()

B). realpath()

C). parentdir()

D). parent()

What is the purpose of the PHP function umask()?

A). Sets the default file permissions for new files

B). Changes file ownership

C). Checks file existence

D). Removes a file

What PHP function creates a directory?

A). mkdir()

B). create_directory()

C). newdir()

D). dir_create()

What does the PHP function filetype() return?

A). Type of a file

B). Size of a file

C). Extension of a file

D). Permissions of a file

Which PHP function is used to change file permissions?

A). chmod()

B). chown()

C). chgrp()

D). umask()

What does the PHP function touch() do?

A). Updates the access and modification time of a file

B). Creates a new file

C). Deletes a file

D). Changes file permissions

What attribute is required in HTML forms for file uploads?

A). enctype='multipart/form-data'

B). method='file'

C). enctype='application/x-www-form-urlencoded'

D). enctype='text/plain'

What is the purpose of the PHP function is_file()?

A). Checks if a path is a regular file

B). Checks if a path is a directory

C). Checks if a file is writable

D). Checks if a file is readable

Which PHP function removes a directory?

A). rmdir()

B). removedir()

C). deletedir()

D). unlink()

What is the PHP function to move an uploaded file to a new location?

A). move_uploaded_file()

B). copy()

C). rename()

D). move_file()