PHP socket_recv and socket_read

Question

From reading the PHP manual, socket_recv and socket_read function looks same to me, both function get data from client.

can any one tell me what are different between those 2 functions?

Answer 1

socket_recv returns the number of bytes received socket_read returns the data that has been received

With socket_recv you can read bytes from the buffer AND know how many bytes have been recevied. With socket_read you can only read a specific amount of data from the buffer

Answer 2

From http://www.faqs.org/faqs/unix-faq/socket/#b:

2.18. What is the difference between read() and recv()?

From Andrew Gierth ([email protected]):

read() is equivalent to recv() with a flags parameter of 0. Other
values for the flags parameter change the behaviour of recv().
Similarly, write() is equivalent to send() with flags == 0.