PHP8 cubrid_lock_write
(PECL CUBRID >= 8.3.0)
cubrid_lock_write — 在给定的 OID 上设置写锁
说明
cubrid_lock_write(resource $conn_identifier, string $oid): bool
cubrid_lock_write() 函数用于写入 锁定给定 .oid
参数
conn_identifier
连接标识符。
oid
要设置写锁定的实例的 OID。
返回值
成功时返回 true, 或者在失败时返回 false。
示例
示例 #1 cubrid_lock_write() 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($req, 1, CUBRID_CURSOR_FIRST);
$oid = cubrid_current_oid($req);
cubrid_lock_write($conn, $oid);
$attr = cubrid_col_get($conn, $oid, "b");
var_dump($attr);
cubrid_put($conn, $oid, "b", array(2, 4, 8));
$attr = cubrid_col_get($conn, $oid, "b");
var_dump($attr);
cubrid_close_request($req);
cubrid_disconnect($conn);
?>
以上示例会输出:
array(3) { [0]=> string(1) "1" [1]=> string(1) "2" [2]=> string(1) "3" } array(3) { [0]=> string(1) "2" [1]=> string(1) "4" [2]=> string(1) "8" }
参见
- cubrid_lock_read() - 在给定的 OID 上设置读取锁