PHP8 cubrid_lock_write

2024-03-28 09:32 更新

(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


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