msg_send

参数

queue

Message queue resource handle

msgtype

The type of the message (MUST be greater than 0)

message

The body of the message.

Note:

If serialize set to FALSE is supplied, MUST be of type: string, integer, float or bool. In other case a warning will be issued.

serialize

The optional serialize controls how the message is sent. serialize defaults to TRUE which means that the message is serialized using the same mechanism as the session module before being sent to the queue. This allows complex arrays and objects to be sent to other PHP scripts, or if you are using the WDDX serializer, to any WDDX compatible client.

blocking

If the message is too large to fit in the queue, your script will wait until another process reads messages from the queue and frees enough space for your message to be sent. This is called blocking; you can prevent blocking by setting the optional blocking parameter to FALSE, in which case msg_send() will immediately return FALSE if the message is too big for the queue, and set the optional errorcode to MSG_EAGAIN, indicating that you should try to send your message again a little later on.

errorcode

If the function fails, the optional errorcode will be set to the value of the system errno variable.