Sophie: php-manual-pt_BR-5.2.4-1mdv2008.1 noarch

php-manual-pt_BR-5.2.4-1mdv2008.1.noarch.rpm

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><H1
><A
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>pg_get_notify</H1
><DIV
CLASS="refnamediv"
><A
NAME="AEN181380"
></A
><P
>    (PHP 4 &#62;= 4.3.0, PHP 5)</P
>pg_get_notify&nbsp;--&nbsp;Gets SQL NOTIFY message</DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN181383"
></A
><H2
>Descrição</H2
>array <B
CLASS="methodname"
>pg_get_notify</B
> ( resource connection [, int result_type] )<BR
></BR
><P
>&#13;   <B
CLASS="function"
>pg_get_notify()</B
> gets notifications generated by a
   <TT
CLASS="literal"
>NOTIFY</TT
> SQL command. To receive notifications,
   the <TT
CLASS="literal"
>LISTEN</TT
> SQL command must be
   issued.
  </P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN181398"
></A
><H2
>Parâmetros</H2
><P
>&#13;   <P
></P
><DIV
CLASS="variablelist"
><DL
><DT
><CODE
CLASS="parameter"
>connection</CODE
></DT
><DD
><P
>&#13;       PostgreSQL database connection resource.
      </P
></DD
><DT
><CODE
CLASS="parameter"
>result_type</CODE
></DT
><DD
><P
>&#13;       An optional parameter that controls
       how the returned <A
HREF="language.types.array.html"
><B
CLASS="type"
>array</B
></A
> is indexed.
       <CODE
CLASS="parameter"
>result_type</CODE
> is a constant and can take the
       following values: <TT
CLASS="constant"
><B
>PGSQL_ASSOC</B
></TT
>, 
       <TT
CLASS="constant"
><B
>PGSQL_NUM</B
></TT
> and <TT
CLASS="constant"
><B
>PGSQL_BOTH</B
></TT
>.
       Using <TT
CLASS="constant"
><B
>PGSQL_NUM</B
></TT
>, <B
CLASS="function"
>pg_get_notify()</B
>
       will return an array with numerical indices, using
       <TT
CLASS="constant"
><B
>PGSQL_ASSOC</B
></TT
> it will return only associative indices
       while <TT
CLASS="constant"
><B
>PGSQL_BOTH</B
></TT
>, the default, will return both
       numerical and associative indices.
      </P
></DD
></DL
></DIV
>
  </P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN181421"
></A
><H2
>Valores de retornado</H2
><P
>&#13;   An <A
HREF="language.types.array.html"
><B
CLASS="type"
>array</B
></A
> containing the <TT
CLASS="literal"
>NOTIFY</TT
> message name and backend PID.
   Otherwise if no <TT
CLASS="literal"
>NOTIFY</TT
> is waiting, then <TT
CLASS="constant"
><B
>FALSE</B
></TT
> is returned.
  </P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN181428"
></A
><H2
>Exemplos</H2
><P
>&#13;   <TABLE
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CLASS="EXAMPLE"
><TR
><TD
><DIV
CLASS="example"
><A
NAME="AEN181431"
></A
><P
><B
>Exemplo 1. PostgreSQL NOTIFY message</B
></P
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><TD
><code><font color="#000000">
<font color="#0000BB">&lt;?php <br />$conn </font><font color="#007700">= </font><font color="#0000BB">pg_pconnect</font><font color="#007700">(</font><font color="#DD0000">"dbname=publisher"</font><font color="#007700">);<br />if (!</font><font color="#0000BB">$conn</font><font color="#007700">) {<br />&nbsp;&nbsp;echo </font><font color="#DD0000">"An error occured.\n"</font><font color="#007700">;<br />&nbsp;&nbsp;exit;<br />}<br /><br /></font><font color="#FF8000">// Listen 'author_updated' message from other processes<br /></font><font color="#0000BB">pg_query</font><font color="#007700">(</font><font color="#0000BB">$conn</font><font color="#007700">, </font><font color="#DD0000">'LISTEN author_updated;'</font><font color="#007700">);<br /></font><font color="#0000BB">$notify </font><font color="#007700">= </font><font color="#0000BB">pg_get_notify</font><font color="#007700">(</font><font color="#0000BB">$conn</font><font color="#007700">);<br />if (!</font><font color="#0000BB">$notify</font><font color="#007700">) {<br />&nbsp;&nbsp;echo </font><font color="#DD0000">"No messages\n"</font><font color="#007700">;<br />} else {<br />&nbsp;&nbsp;</font><font color="#0000BB">print_r</font><font color="#007700">(</font><font color="#0000BB">$notify</font><font color="#007700">);<br />}<br /></font><font color="#0000BB">?&gt;</font>
</font>
</code></TD
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></TD
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>
  </P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN181434"
></A
><H2
>Veja também</H2
><P
>&#13;   <P
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><A
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