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                               ifx_affected_rows

   (PHP 3>= 3.0.3, PHP 4 )
   ifx_affected_rows -- Get number of rows affected by a query

Description

   int ifx_affected_rows ( int result_id)

   result_id is a valid result id returned by ifx_query() or
   ifx_prepare().

   Returns the number of rows affected by a query associated with
   result_id.

   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).

   Useful after ifx_prepare() to limit queries to reasonable result sets.

   Example 1. Informix affected rows
   <?php
   $rid = ifx_prepare("select * from emp
                        where name like " . $name, $connid);
   if (! $rid) {
       /* ... error ... */
   }
   $rowcount = ifx_affected_rows($rid);
   if ($rowcount > 1000) {
       printf ("Too many rows in result set (%d)\n<br />", $rowcount);
       die ("Please restrict your query<br />\n");
   }
   ?>

   See also ifx_num_rows().
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