(PECL CUBRID >= 8.3.0)
cubrid_col_size — Get the number of elements in collection type column using OID
$conn_identifier
, string $oid
, string $attr_name
) : intThe cubrid_col_size() function is used to get the number of elements in a collection type (set, multiset, sequence) attribute.
conn_identifierConnection identifier.
oidOID the instance that you want to work with.
attr_nameName of the attribute that you want to work with.
Number of elements, when process is successful, 或者在失败时返回 false.
| 版本 | 说明 |
|---|---|
| 8.3.1 | Change return value: when process is unsuccessful, return false, not -1. |
Example #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);
?>
以上例程会输出：
array(3) {
[0]=>
string(1) "1"
[1]=>
string(1) "2"
[2]=>
string(1) "3"
}
int(3)