Probe into PHP shared memory Shmop

Read-write program first:

Read:

Unix/linux Command View:

Key: A unique key value for shared memory that is shared by the key to determine which piece of memory you are reading.

Shmid: When you use key to get memory, you get the value of this ID. It acts as an identifier for the memory block you are manipulating.

Owner: The user who created the shared memory block

Perms: Read and Write permissions for this shared memory, 8 forbidden, can be 777, consistent with the read and write permissions of the file.

Bytes: The size of the memory block

Nattch: Number of processes connected to this memory block

Status: Current state, such as: dest, imminent deletion, etc.

The above describes the PHP shared memory Shmop, including the aspects of the content, I hope that the PHP tutorial interested in a friend helpful.

