Q
What does the 'a' mode do when opening a file in PHP?

Answer & Solution

Answer: Option A
Solution:
When opening a file in 'a' mode, PHP appends data to the end of the file if it exists or creates a new file if it doesn't exist. Existing file contents remain unchanged.
Related Questions on Average

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 write data to a file if the file doesn't exist in PHP?

A). file_put_contents()

B). fwrite()

C). fput()

D). put_file()

How do you get the file size in PHP?

A). filesize()

B). get_file_size()

C). file_size()

D). size()

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

A). fwrite()

B). fput()

C). file_write()

D). put_file()

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

A). w

B). r

C). a

D). wb

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

A). r+

B). w+

C). a+

D). rb+

What does the 'rb' mode do when opening a file in PHP?

A). Read mode for binary files

B). Read mode for large files

C). Read mode with buffering

D). Read mode with backup

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

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

A). is_writable()

B). can_write()

C). is_writeable()

D). writable_file()

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

A). Read and write mode, truncates file to zero length

B). Append mode, creates new file if it doesn't exist

C). Write mode, appends data to end of file

D). Read mode, creates new file if it doesn't exist