if you use this function following:
<?php
$query = ifx_query("SELECT * FROM systables", $connection);
$rows = ifx_num_rows($query);
?>
this way it doesn't work...
the correct is:
<?php
$query = ifx_query("SELECT * FROM systables", $connection);
$fetch = ifx_fetch_row($query);
$rows = ifx_num_rows($query);
?>
this way it work...
the informix doesn't returns anything (only with ifx_num_rows) if you don't open the results of query (with ifx_fetch_row)
ifx_num_rows
(PHP 4, PHP 5 < 5.2.1)
ifx_num_rows — Count the rows already fetched from a query
说明
ifx_num_rows
( resource
$result_id
) : int
Gives the number of rows fetched so far for a query with
result_id after a
ifx_query() or ifx_do()
query.
参数
-
result_id -
result_idis a valid resultid returned by ifx_query() or ifx_prepare() (select type queries only!).
返回值
Returns the number of fetched rows or FALSE on errors.
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User Contributed Notes 2 notes
evandrosimenes at hotmail dot com ¶
15 years ago
icespawn11882 at hotmail dot com ¶
19 years ago
This function give always 0 as result so I used ifx_affected_rows to count rows of a query's result...
An example of this function:
$conn_id = ifx_connect("db", "user", "password");
$res_id = ifx_query("select * from systables", $conn_id);
$res = ifx_affected_rows($res_id);
echo $res;
$res contains the number of rows in the result of the query after his execution.
Para Massimiliano
