PHP-Handbuch: Get the number of rows in the result set

Beschreibung

int cubrid_num_rows ( resource $result )

The cubrid_num_rows function is used to get the number of rows from the query result. You can use it only when the query executed is a select statement. When you want to know such value for INSERT, UPDATE, or DELETE query, you have to use the cubrid_affected_rows function.

Note: The cubrid_num_rows function can only be used for synchronous query; it returns 0 when it is used for asynchronous query.

Parameter-Liste

result: result comes from a call to cubrid_execute, cubrid_query and cubrid_prepare

Rückgabewerte

Number of rows, when process is successful.

0 when the query was done in async mode.

-1, if SQL statement is not SELECT.

FALSE when process is unsuccessful.

Beispiele

Beispiel #1 cubrid_num_rows example


<?php
$conn = cubrid_connect("localhost", 33000, "demodb", "dba");

$req = cubrid_execute($conn, "SELECT * FROM code");

$row_num = cubrid_num_rows($req);
$col_num = cubrid_num_cols($req);

printf("Row Num: %d\nColumn Num: %d\n", $row_num, $col_num);

cubrid_disconnect($conn);
?>

Das oben gezeigte Beispiel erzeugt folgende Ausgabe:

Row Num: 6
Column Num: 2

Siehe auch

cubrid_execute
cubrid_num_cols
cubrid_affected_rows