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# yaz_addinfo

(PHP 4 >= 4.0.1, PECL)

yaz_addinfo -- Returns additional error information

## 说明

string yaz_addinfo ( resource id )

Returns additional error information for the last request on the server.

With some servers, this function may return the same string as yaz_error().

## 参数

`id`

  The connection resource returned by yaz_connect().

## 返回值

A string containing additional error information or an empty string if the last operation was successful or if no additional information was provided by the server.

## 参见

yaz_error()
yaz_errno()

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