Shulou(Shulou.com)05/31 Report--

Today, I would like to share with you the relevant knowledge about how to achieve php message queue. The content is detailed and the logic is clear. I believe most people still know too much about this, so share this article for your reference. I hope you can get something after reading this article. Let's take a look at it.

Description

1. A message queue is a queue stored in memory.

2. Since only one process can get to message queuing, no additional locks or semaphores are needed.

Example

Echo "parent progress pid: {$parentPid}\ n"; $childList = array (); / / create a message queue and define the message type (similar to the library in the database) $id = ftok (_ _ FILE__,'m'); $msgQueue = msg_get_queue ($id); const MSG_TYPE = 1stroke / producer function producer () {global $msgQueue; $pid = posix_getpid (); $repeatNum = 5; for ($I = 1; $I

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