4. How do you close a file after reading from it in PHP?

How do you check if a file is writable in PHP?

A). is_writable()

B). can_write()

C). is_writeable()

D). writable_file()

Which mode should be used to open a file for writing in PHP?

A). w

B). r

C). a

D). wb

Which function is used to read the entire content of a file into a string in PHP?

A). file_get_contents()

B). fread()

C). fget_contents()

D). read_file()

Which function is used to write data to a file if the file doesn't exist in PHP?

A). file_put_contents()

B). fwrite()

C). fput()

D). put_file()

What is the purpose of the 'b' mode when opening a file in PHP?

A). Binary mode for reading and writing data

B). Read mode for large files

C). Backup mode for file operations

D). Buffer mode for file handling

Which function is used to write data to a file in PHP?

A). fwrite()

B). fput()

C). file_write()

D). put_file()

Which function is used to delete a file in PHP?

A). unlink()

B). delete_file()

C). remove_file()

D). erase()

Which function is used to read a single line from a file in PHP?

A). fgets()

B). fread()

C). fget()

D). readline()

Which function is used to check if a file exists in PHP?

A). file_exists()

B). is_file()

C). file_check()

D). check_file()

What is the purpose of the 'x' mode when opening a file in PHP?

A). Create a new file and open it for writing

B). Read the file in exclusive mode

C). Execute the file as a PHP script

D). Export file contents to another format