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* Update pg-query.xml * Update pg-result-error.xml * Update pg-result-error.xml * Update pg-result-seek.xml * Update pg-query.xml * Update pg-result-error.xml * Update pg-result-seek.xml
129 lines
3.6 KiB
XML
Executable File
129 lines
3.6 KiB
XML
Executable File
<?xml version="1.0" encoding="utf-8"?>
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<!-- $Revision$ -->
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<!-- EN-Revision: c2eca73ef79ebe78cebb34053e41b565af504c4f Maintainer: dallas Status: ready -->
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<!-- CREDITS: mowangjuanzi -->
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<!-- splitted from ./en/functions/pgsql.xml, last change in rev 1.82 -->
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<refentry xml:id="function.pg-result-error" xmlns="http://docbook.org/ns/docbook">
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<refnamediv>
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<refname>pg_result_error</refname>
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<refpurpose>
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获得跟 result 相关的错误信息
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</refpurpose>
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</refnamediv>
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<refsect1 role="description">
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&reftitle.description;
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<methodsynopsis>
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<type class="union"><type>string</type><type>false</type></type><methodname>pg_result_error</methodname>
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<methodparam><type>PgSql\Result</type><parameter>result</parameter></methodparam>
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</methodsynopsis>
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<para>
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<function>pg_result_error</function> 返回和 <parameter>result</parameter>
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实例关联的错误信息。因此用户更有机会可以得到比 <function>pg_last_error</function> 更好的错误信息。
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</para>
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<para>
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函数 <function>pg_result_error_field</function> 可以比 <function>pg_result_error</function> 给出更多关于 result 错误的细节。
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</para>
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<para>
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因为如果查询失败 <function>pg_query</function> 返回 &false;，必须使用
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<function>pg_send_query</function> 和 <function>pg_get_result</function> 来获取 result 句柄。
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</para>
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</refsect1>
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<refsect1 role="parameters">
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&reftitle.parameters;
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<para>
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<variablelist>
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<varlistentry>
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<term><parameter>result</parameter></term>
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<listitem>
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&pgsql.parameter.result;
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</listitem>
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</varlistentry>
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</variablelist>
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</para>
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</refsect1>
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<refsect1 role="returnvalues">
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&reftitle.returnvalues;
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<para>
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返回 <type>string</type>。如果没有错误返回空字符串。如果有跟
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<parameter>result</parameter> 参数相关的错误，则返回 &false;。
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</para>
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</refsect1>
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<refsect1 role="changelog">
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&reftitle.changelog;
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<informaltable>
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<tgroup cols="2">
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<thead>
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<row>
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<entry>&Version;</entry>
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<entry>&Description;</entry>
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</row>
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</thead>
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<tbody>
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&pgsql.changelog.result-object;
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</tbody>
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</tgroup>
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</informaltable>
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</refsect1>
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<refsect1 role="examples">
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&reftitle.examples;
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<para>
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<example>
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<title><function>pg_result_error</function> 示例</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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$dbconn = pg_connect("dbname=publisher") or die("Could not connect");
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if (!pg_connection_busy($dbconn)) {
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pg_send_query($dbconn, "select * from doesnotexist;");
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}
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$res1 = pg_get_result($dbconn);
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echo pg_result_error($res1);
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?>
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]]>
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</programlisting>
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</example>
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</para>
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</refsect1>
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<refsect1 role="seealso">
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&reftitle.seealso;
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<para>
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<simplelist>
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<member><function>pg_result_error_field</function></member>
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<member><function>pg_query</function></member>
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<member><function>pg_send_query</function></member>
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<member><function>pg_get_result</function></member>
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<member><function>pg_last_error</function></member>
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<member><function>pg_last_notice</function></member>
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</simplelist>
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</para>
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</refsect1>
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</refentry>
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<!-- Keep this comment at the end of the file
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Local variables:
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mode: sgml
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sgml-omittag:t
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sgml-shorttag:t
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sgml-minimize-attributes:nil
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sgml-always-quote-attributes:t
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sgml-indent-step:1
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sgml-indent-data:t
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indent-tabs-mode:nil
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sgml-parent-document:nil
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sgml-default-dtd-file:"~/.phpdoc/manual.ced"
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sgml-exposed-tags:nil
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sgml-local-catalogs:nil
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sgml-local-ecat-files:nil
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End:
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vim600: syn=xml fen fdm=syntax fdl=2 si
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vim: et tw=78 syn=sgml
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vi: ts=1 sw=1
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-->
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