unlink() function is used to delete a file in PHP. It removes the specified file from the file system.
Which PHP function sets the default permissions for new files?
A). umask()
B). chmod()
C). set_permissions()
D). default_perms()
Which PHP function checks if a file or directory exists?
A). file_exists()
B). is_file()
C). exists()
D). check_file()
Which superglobal variable in PHP is used to handle file uploads?
A). $_FILES
B). $_POST
C). $_GET
D). $_REQUEST
Which PHP function returns the parent directory of a file?
A). dirname()
B). realpath()
C). parentdir()
D). parent()
Which PHP function retrieves the last modified time of a file?
A). filemtime()
B). file_lastmod()
C). last_modified()
D). mod_time()
Which PHP function returns the size of a file?
A). filesize()
B). get_filesize()
C). file_size()
D). size()
What is the purpose of the PHP function fileatime()?
A). Retrieves the last access time of a file
B). Retrieves the last modified time of a file
C). Retrieves the creation time of a file
D). Retrieves the last status change time 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 is the PHP function to move an uploaded file to a new location?
A). move_uploaded_file()
B). copy()
C). rename()
D). move_file()