msg_queue_exists

(PHP 5 >= 5.3.0, PHP 7, PHP 8)

msg_queue_existsCheck whether a message queue exists

说明

msg_queue_exists(int $key): bool

Checks whether the message queue key exists.

参数

key

Queue key.

返回值

成功时返回 true, 或者在失败时返回 false

参见

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