12. What PHP function retrieves information about a file?

Which PHP function checks if a file or directory exists?

A). file_exists()

B). is_file()

C). exists()

D). check_file()

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

A). filemtime()

B). file_lastmod()

C). last_modified()

D). mod_time()

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

A). $_FILES

B). $_POST

C). $_GET

D). $_REQUEST

Which PHP function is used to handle file uploads?

A). move_uploaded_file()

B). copy()

C). rename()

D). fopen()

What PHP function is used to delete a file?

A). unlink()

B). remove()

C). delete()

D). file_delete()

Which PHP function is used to change file permissions?

A). chmod()

B). chown()

C). chgrp()

D). umask()

Which PHP function sets the file pointer to the beginning of a file?

A). rewind()

B). reset()

C). fseek()

D). file_start()

Which PHP function removes a directory?

A). rmdir()

B). removedir()

C). deletedir()

D). unlink()

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

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