PHP-Handbuch: Get the number of elements in collection type column using OID

Beschreibung

int cubrid_col_size ( resource $conn_identifier , string $oid , string $attr_name )

The cubrid_col_size function is used to get the number of elements in a collection type (set, multiset, sequence) attribute.

Parameter-Liste

conn_identifier: Connection identifier.
oid: OID the instance that you want to work with.
attr_name: Name of the attribute that you want to work with.

Rückgabewerte

Number of elements, when process is successful.

FALSE, when process is unsuccessful.

Changelog

Version	Beschreibung
8.3.1	Change return value: when process is unsuccessful, return false, not -1.

Beispiele

Beispiel #1 cubrid_col_size example


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

@cubrid_execute($conn, "DROP TABLE foo");
cubrid_execute($conn, "CREATE TABLE foo(a int AUTO_INCREMENT, b set(int), c list(int), d char(10))");
cubrid_execute($conn, "INSERT INTO foo(a, b, c, d) VALUES(1, {1,2,3}, {11,22,33,333}, 'a')");

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

cubrid_move_cursor($req, 1, CUBRID_CURSOR_FIRST);
$oid = cubrid_current_oid($req);

$attr = cubrid_col_get($conn, $oid, "b");
var_dump($attr);

$size = cubrid_col_size($conn, $oid, "b");
var_dump($size);

cubrid_close_request($req);
cubrid_disconnect($conn);
?>

Das oben gezeigte Beispiel erzeugt folgende Ausgabe:

array(3) {
  [0]=>
  string(1) "1"
  [1]=>
  string(1) "2"
  [2]=>
  string(1) "3"
}
int(3)