Which function is used to write data to a file in PHP?
A). fwrite()
B). fput()
C). file_write()
D). put_file()
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
Which function is used to open a file in PHP?
A). fopen()
B). readfile()
C). file_get_contents()
D). file_put_contents()
Which mode should be used to open a file for writing in PHP?
A). w
B). r
C). a
D). wb
What is the purpose of the 'r' mode when opening a file in PHP?
A). Read data from a file
B). Write data to a file
C). Append data to a file
D). Truncate a 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 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 check if a file exists in PHP?
A). file_exists()
B). is_file()
C). file_check()
D). check_file()
How do you close a file after reading from it in PHP?
A). fclose()
B). close()
C). endfile()
D). finish()
Which function is used to delete a file in PHP?
A). unlink()
B). delete_file()
C). remove_file()
D). erase()