About socket in PHP, the statement is wrong
A. Use the fsocketopen function to establish a socket connection.
B. Working in the seventh layer, it can be based on TCP and UDP protocols
C. The default timeout in PHP is 30 seconds
D. Working in the fourth layer, it can be based on TCP and UDP protocols
Answer:B
About socket in PHP, the statement is wrong
A. Use the fsocketopen function to establish a socket connection. B. Working in the seventh layer, it can be based on TCP and UDP protocols C. The default timeout in PHP is 30 seconds D. Working in the fourth layer, it can be based on TCP and UDP protocols