(PHP 4 >= 4.3.0, PHP 5)
msg_stat_queue — Returns information from the message queue data structure
msg_stat_queue() returns the message queue meta data for the message queue specified by the queue . This is useful, for example, to determine which process sent the message that was just received.
The return value is an array whose keys and values have the following meanings:
| msg_perm.uid | The uid of the owner of the queue. |
| msg_perm.gid | The gid of the owner of the queue. |
| msg_perm.mode | The file access mode of the queue. |
| msg_stime | The time that the last message was sent to the queue. |
| msg_rtime | The time that the last message was received from the queue. |
| msg_ctime | The time that the queue was last changed. |
| msg_qnum | The number of messages waiting to be read from the queue. |
| msg_qbytes | The number of bytes of space currently available in the queue to hold sent messages until they are received. |
| msg_lspid | The pid of the process that sent the last message to the queue. |
| msg_lrpid | The pid of the process that received the last message from the queue. |