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

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

A). file_exists()

B). is_file()

C). file_check()

D). check_file()

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

A). is_readable()

B). can_read()

C). is_read()

D). readable_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()

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

A). r+

B). w+

C). a+

D). rb+

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 open a file in PHP?

A). fopen()

B). readfile()

C). file_get_contents()

D). file_put_contents()

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

A). fclose()

B). close()

C). endfile()

D). finish()

What happens if you try to open a non-existent file in 'r' mode?

A). fopen() returns false

B). A new file is created

C). The script throws an error

D). The file is opened in read mode

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