13. Which PHP function extracts the extension of a file path?

What does the PHP function getcwd() return?

A). Current working directory

B). Contents of a directory

C). Size of a file

D). Absolute path of a file

Which PHP function creates a new file?

A). fopen()

B). file_create()

C). touch()

D). create_file()

What is the PHP function to check if a path is a directory?

A). is_dir()

B). is_file()

C). file_exists()

D). exists()

Which PHP function returns the filename component of a path?

A). basename()

B). dirname()

C). realpath()

D). filename()

What does the PHP function is_file() check for?

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 does the PHP function dirname() return?

A). Directory name component of a path

B). Filename component of a path

C). Absolute path of a file

D). Parent directory of the current directory

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

A). Checks if a file or directory exists

B). Returns the absolute path of a file

C). Extracts the extension of a file path

D). Returns the parent directory of a file

What does the PHP function is_readable() check for?

A). Checks if a file is readable

B). Checks if a file is writable

C). Checks if a file is executable

D). Checks if a file is deletable

Which PHP function changes the current directory?

A). chdir()

B). mkdir()

C). rmdir()

D). scandir()

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

A). Returns the absolute path of a file

B). Returns the directory name component of a path

C). Returns an array of files and directories in a directory

D). Checks if a file or directory exists