php-doc-en/reference/yaz/functions/yaz-errno.xml
2004-01-26 13:42:22 +00:00

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<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.5 $ -->
<!-- splitted from ./en/functions/yaz.xml, last change in rev 1.1 -->
<refentry id="function.yaz-errno">
<refnamediv>
<refname>yaz_errno</refname>
<refpurpose>Returns error number</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<methodsynopsis>
<type>int</type><methodname>yaz_errno</methodname>
<methodparam><type>resource</type><parameter>id</parameter></methodparam>
</methodsynopsis>
<para>
Returns an errornumber for the server (last request) identified by
<parameter>id</parameter>. The error code is either a Z39.50 diagnostic
code (usually a Bib-1 diagnostic) or a client side error code which is
generated by PHP/YAZ itself, such as "Connect failed", "Init Rejected", etc.
</para>
<para>
<function>yaz_errno</function> should be called after network
activity for each server - (after <function>yaz_wait</function>
returns) to determine the success or failure of the last
operation (e.g. search). To get a text description of the
error, call <function>yaz_error</function>.
</para>
</refsect1>
</refentry>
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