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# yaz_wait

(PHP 4 >= 4.0.1, PECL)

yaz_wait -- Wait for Z39.50 requests to complete

## 说明

mixed yaz_wait ( [array &options] )

This function carries out networked (blocked) activity for outstanding requests which have been prepared by the functions yaz_connect(), yaz_search(), yaz_present(), yaz_scan() and yaz_itemorder().

yaz_wait() returns when all servers have either completed all requests or aborted (in case of errors).

## 参数

`options`

  An associative array of options:

  `timeout`

    Sets timeout in seconds. If a server has not responded within the timeout it is considered dead and yaz_wait() returns. The default value for timeout is 15 seconds.

  `event`

    A boolean.

## 返回值

如果成功则返回 `TRUE`，失败则返回 `FALSE`。 In event mode, returns resource or `FALSE` in case of an error.

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