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php-manual-en-4.3.0-2mdk.noarch.rpm

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>ifx_affected_rows</H1
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><P
>    (PHP 3&#62;= 3.0.3, PHP 4 )</P
>ifx_affected_rows&nbsp;--&nbsp;Get number of rows affected by a query</DIV
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><H2
>Description</H2
>int <B
CLASS="methodname"
>ifx_affected_rows</B
> ( int result_id)<BR
></BR
><P
>&#13;     <TT
CLASS="parameter"
><I
>result_id</I
></TT
> is 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
><P
> 
     Returns the number of rows affected by a query associated with
     <TT
CLASS="parameter"
><I
>result_id</I
></TT
>.  
    </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
><P
>&#13;     See also: <A
HREF="function.ifx-num-rows.html"
><B
CLASS="function"
>ifx_num_rows()</B
></A
>
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>Example 1. Informix affected rows</B
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><PRE
CLASS="php"
>$rid = ifx_prepare ("select * from emp 
                     where name like " . $name, $connid);
if (! $rid) {
    ... error ...
}
$rowcount = ifx_affected_rows ($rid);
if ($rowcount &#62; 1000) {
    printf ("Too many rows in result set (%d)\n&#60;br&#62;", $rowcount);
    die ("Please restrict your query&#60;br&#62;\n");
}</PRE
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