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PHP

Get number of rows affected by a query


ifx_affected_rows

(PHP 4, PHP <=5.2.0)

ifx_affected_rowsGet number of rows affected by a query

Description

int ifx_affected_rows ( resource $result_id )

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.

Parameters

result_id

A valid result id returned by ifx_query() or ifx_prepare().

Return Values

Returns the number of rows as an integer.

Examples

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



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