php-doc-en/reference/pgsql/functions/pg-last-notice.xml

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<!-- splitted from ./en/functions/pgsql.xml, last change in rev 1.82 -->
<refentry xmlns="http://docbook.org/ns/docbook" xml:id="function.pg-last-notice">
 <refnamediv>
  <refname>pg_last_notice</refname> 
  <refpurpose>
   Returns the last notice message from PostgreSQL server
  </refpurpose>
 </refnamediv>

 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>string</type><methodname>pg_last_notice</methodname>
   <methodparam><type>resource</type><parameter>connection</parameter></methodparam>
  </methodsynopsis>
  <para>
   <function>pg_last_notice</function> returns the last notice
   message from the PostgreSQL server on the specified
   <parameter>connection</parameter>. The PostgreSQL server sends notice
   messages in several cases, for instance when creating a <literal>SERIAL</literal>
   column in a table.
  </para>
  <para>
   With <function>pg_last_notice</function>, you can avoid issuing useless
   queries by checking whether or not the notice is related to your transaction.
  </para>
  <para>
   Notice message tracking can be set to optional by setting 1 for
   <literal>pgsql.ignore_notice</literal> in &php.ini;.
  </para>
  <para>
   Notice message logging can be set to optional by setting 0 for
   <literal>pgsql.log_notice</literal> in &php.ini;.
   Unless <literal>pgsql.ignore_notice</literal> is set
   to 0, notice message cannot be logged.
  </para>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>connection</parameter></term>
     <listitem>
      <para>
       PostgreSQL database connection resource.
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   A <type>string</type> containing the last notice on the 
   given <parameter>connection</parameter>, or &false; on error.
  </para>
 </refsect1>

 <refsect1 role="changelog">
  &reftitle.changelog;
  <para>
   <informaltable>
    <tgroup cols="2">
     <thead>
      <row>
       <entry>&Version;</entry>
       <entry>&Description;</entry>
      </row>
     </thead>
     <tbody>
      <row>
       <entry>4.3.0</entry>
       <entry>
        This function is now fully implemented. Earlier versions ignores
        database connection parameter.
       </entry>
      </row>
      <row>
       <entry>4.3.0</entry>
       <entry>
        The <literal>pgsql.ignore_notice</literal> and 
        <literal>pgsql.log_notice</literal> &php.ini; directives were added.
       </entry>
      </row>
      <row>
       <entry>4.0.6</entry>
       <entry>
        PHP 4.0.6 has problem with notice message handling. Use of the
        PostgreSQL module with PHP 4.0.6 is not recommended even if you are
        not using <function>pg_last_notice</function>.
       </entry>
      </row>
     </tbody>
    </tgroup>
   </informaltable>
  </para>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   <example>
    <title><function>pg_last_notice</function> example</title>
    <programlisting role="php">
<![CDATA[
<?php
  $pgsql_conn = pg_connect("dbname=mark host=localhost");
  
  $res = pg_query("CREATE TABLE test (id SERIAL)");
  
  $notice = pg_last_notice($pgsql_conn);
  
  echo $notice;
?>
]]>
    </programlisting>
    &example.outputs;
    <screen>
<![CDATA[
CREATE TABLE will create implicit sequence "test_id_seq" for "serial" column "test.id"
]]>
    </screen>
   </example>
  </para>
 </refsect1>
 
 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><function>pg_query</function></member>
    <member><function>pg_last_error</function></member>
   </simplelist>
  </para>
 </refsect1>

</refentry>

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