msg_send
(PHP 4 >= 4.3.0, PHP 5)
msg_send — Send a message to a message queue
Description
bool msg_send
(
resource $queue
,
int $msgtype
,
mixed $message
[,
bool $serialize
[,
bool $blocking
[,
int &$errorcode
]]] )
Parameters
-
queue
-
-
msgtype
-
-
message
-
-
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
-
Return Values
Returns TRUE on success or FALSE on failure.
Upon successful completion the message queue data structure is updated as
follows: msg_lspid
is set to the process-ID of the
calling process, msg_qnum
is incremented by 1 and
msg_stime
is set to the current time.
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