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>ifx_affected_rows</H1
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><P
> (PHP 3 >= 3.0.3, PHP 4, PHP 5)</P
>ifx_affected_rows -- Get number of rows affected by a query</DIV
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><H2
>Descrição</H2
>int <B
CLASS="methodname"
>ifx_affected_rows</B
> ( resource result_id )<BR
></BR
><P
> Returns the number of rows affected by a query associated with
<CODE
CLASS="parameter"
>result_id</CODE
>.
</P
><P
> For inserts, updates and deletes the number is the real number
(sqlerrd[2]) of affected rows. For selects it is an estimate
(sqlerrd[0]). Don't rely on it. The database server can never
return the actual number of rows that will be returned by a
SELECT because it has not even begun fetching them at this stage
(just after the "PREPARE" when the optimizer has determined the
query plan).
</P
><P
> Useful after <A
HREF="function.ifx-prepare.html"
><B
CLASS="function"
>ifx_prepare()</B
></A
> to limit queries to
reasonable result sets.
</P
></DIV
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CLASS="refsect1"
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NAME="AEN95997"
></A
><H2
>Parâmetros</H2
><P
> <P
></P
><DIV
CLASS="variablelist"
><DL
><DT
><CODE
CLASS="parameter"
>result_id</CODE
></DT
><DD
><P
> A valid result id returned by <A
HREF="function.ifx-query.html"
><B
CLASS="function"
>ifx_query()</B
></A
> or
<A
HREF="function.ifx-prepare.html"
><B
CLASS="function"
>ifx_prepare()</B
></A
>.
</P
></DD
></DL
></DIV
>
</P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN96008"
></A
><H2
>Valores de retornado</H2
><P
> Returns the number of rows as an integer.
</P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN96011"
></A
><H2
>Exemplos</H2
><P
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></A
><P
><B
>Exemplo 1. Informix affected rows</B
></P
><TABLE
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><TD
><code><font color="#000000">
<font color="#0000BB"><?php<br />$rid </font><font color="#007700">= </font><font color="#0000BB">ifx_prepare</font><font color="#007700">(</font><font color="#DD0000">"select * from emp<br /> where name like " </font><font color="#007700">. </font><font color="#0000BB">$name</font><font color="#007700">, </font><font color="#0000BB">$connid</font><font color="#007700">);<br />if (! </font><font color="#0000BB">$rid</font><font color="#007700">) {<br /> </font><font color="#FF8000">/* ... error ... */<br /></font><font color="#007700">}<br /></font><font color="#0000BB">$rowcount </font><font color="#007700">= </font><font color="#0000BB">ifx_affected_rows</font><font color="#007700">(</font><font color="#0000BB">$rid</font><font color="#007700">);<br />if (</font><font color="#0000BB">$rowcount </font><font color="#007700">> </font><font color="#0000BB">1000</font><font color="#007700">) {<br /> </font><font color="#0000BB">printf </font><font color="#007700">(</font><font color="#DD0000">"Too many rows in result set (%d)\n<br />"</font><font color="#007700">, </font><font color="#0000BB">$rowcount</font><font color="#007700">);<br /> die (</font><font color="#DD0000">"Please restrict your query<br />\n"</font><font color="#007700">);<br />}<br /></font><font color="#0000BB">?></font>
</font>
</code></TD
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>
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><H2
>Veja também</H2
><P
> <P
></P
><TABLE
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><TR
><TD
><A
HREF="function.ifx-num-rows.html"
><B
CLASS="function"
>ifx_num_rows()</B
></A
></TD
></TR
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><P
></P
>
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