20. What does the PHP function touch() do?

Which superglobal variable in PHP is used to handle file uploads?

A). $_FILES

B). $_POST

C). $_GET

D). $_REQUEST

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

A). filemtime()

B). file_lastmod()

C). last_modified()

D). mod_time()

What PHP function retrieves information about a file?

A). stat()

B). fileinfo()

C). fileinfo_stat()

D). fileinfo()

Which PHP function checks if a file or directory exists?

A). file_exists()

B). is_file()

C). exists()

D). check_file()

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

Which PHP function returns the parent directory of a file?

A). dirname()

B). realpath()

C). parentdir()

D). parent()

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()

Which PHP function is used to handle file uploads?

A). move_uploaded_file()

B). copy()

C). rename()

D). fopen()

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'

Which PHP function sets the default permissions for new files?

A). umask()

B). chmod()

C). set_permissions()

D). default_perms()