cubrid_lock_read

(PECL CUBRID >= 8.3.0)

cubrid_lock_readSet a read lock on the given OID

説明

cubrid_lock_read(resource $conn_identifier, string $oid): bool

The cubrid_lock_read() function is used to put read lock on the instance pointed by given oid.

パラメータ

conn_identifier

Connection identifier.

oid

OID of the instance that you want to put read lock on.

戻り値

成功した場合に true を、失敗した場合に false を返します。

例1 cubrid_lock_read() 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($conn"INSERT INTO foo(a, b, c, d) VALUES(1, {1,2,3}, {11,22,33,333}, 'a')");
cubrid_execute($conn"INSERT INTO foo(a, b, c, d) VALUES(2, {4,5,7}, {44,55,66,666}, 'b')");

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

cubrid_move_cursor($req1CUBRID_CURSOR_FIRST);
$oid cubrid_current_oid($req);

cubrid_lock_read($conn$oid);

$attr cubrid_get($conn$oid"b");
var_dump($attr);

$attr cubrid_get($conn$oid);
var_dump($attr);

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

上の例の出力は以下となります。

string(9) "{1, 2, 3}"
array(4) {
  ["a"]=>
  string(1) "1"
  ["b"]=>
  array(3) {
    [0]=>
    string(1) "1"
    [1]=>
    string(1) "2"
    [2]=>
    string(1) "3"
  }
  ["c"]=>
  array(4) {
    [0]=>
    string(2) "11"
    [1]=>
    string(2) "22"
    [2]=>
    string(2) "33"
    [3]=>
    string(3) "333"
  }
  ["d"]=>
  string(10) "a         "
}

参考

関連キーワード:  lock, read, string, given, OID, Set, cubrid, the, identifier, array