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pg-result-error.xml
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131 lines (123 loc) · 3.58 KB
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<?xml version="1.0" encoding="utf-8"?>
<!-- EN-Revision: c2eca73ef79ebe78cebb34053e41b565af504c4f Maintainer: PhilDaiguille Status: ready -->
<!-- Reviewed: no -->
<refentry xml:id="function.pg-result-error" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>pg_result_error</refname>
<refpurpose>
Lee el mensaje de error asociado a un resultado
</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type class="union"><type>string</type><type>false</type></type><methodname>pg_result_error</methodname>
<methodparam><type>PgSql\Result</type><parameter>result</parameter></methodparam>
</methodsynopsis>
<para>
<function>pg_result_error</function> devuelve el mensaje
de error asociado al resultado <parameter>result</parameter>. Por
consiguiente, es probable que se obtenga un mensaje
de error más apropiado que mediante <function>pg_last_error</function>.
</para>
<para>
La función <function>pg_result_error_field</function> puede proporcionar
muchos más detalles sobre los errores que <function>pg_result_error</function>.
</para>
<para>
Dado que <function>pg_query</function> devuelve &false; si la consulta falla,
se debe utilizar <function>pg_send_query</function> y
<function>pg_get_result</function> para recuperar el recurso de resultado.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>result</parameter></term>
<listitem>
&pgsql.parameter.result;
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
Devuelve un &string;. Devuelve una cadena vacía si no hay ningún error.
Si hay un error asociado con el parámetro
<parameter>result</parameter>, se devolverá &false;.
</para>
</refsect1>
<refsect1 role="changelog">
&reftitle.changelog;
<informaltable>
<tgroup cols="2">
<thead>
<row>
<entry>&Version;</entry>
<entry>&Description;</entry>
</row>
</thead>
<tbody>
&pgsql.changelog.result-object;
</tbody>
</tgroup>
</informaltable>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title>Ejemplo con <function>pg_result_error</function></title>
<programlisting role="php">
<![CDATA[
<?php
$dbconn = pg_connect("dbname=publisher") or die("Conexión imposible");
if (!pg_connection_busy($dbconn)) {
pg_send_query($dbconn, "select * from nexistepas;");
}
$res1 = pg_get_result($dbconn);
echo pg_result_error($res1);
?>
]]>
</programlisting>
</example>
</para>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><function>pg_result_error_field</function></member>
<member><function>pg_query</function></member>
<member><function>pg_send_query</function></member>
<member><function>pg_get_result</function></member>
<member><function>pg_last_error</function></member>
<member><function>pg_last_notice</function></member>
</simplelist>
</para>
</refsect1>
</refentry>
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sgml-minimize-attributes:nil
sgml-always-quote-attributes:t
sgml-indent-step:1
sgml-indent-data:t
indent-tabs-mode:nil
sgml-parent-document:nil
sgml-default-dtd-file:"~/.phpdoc/manual.ced"
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sgml-local-catalogs:nil
sgml-local-ecat-files:nil
End:
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vim: et tw=78 syn=sgml
vi: ts=1 sw=1
-->