# fbsql_close

(PHP 4 >= 4.0.6, PHP 5, PHP 7)

fbsql_close — Close FrontBase connection

### 说明

fbsql_close ([ resource `$link_identifier` ] ) : bool

Closes the connection to the FrontBase server that's associated with the specified link identifier.

Using fbsql_close() isn't usually necessary, as non-persistent open links are automatically closed at the end of the script's execution.

### 参数

`link_identifier`

  由 fbsql_connect() 或 fbsql_pconnect() 返回的 FrontBase 链接标识符.

  如可选并未指定，函数会尝试查找一个到 FrontBase 服务器的开放链接，且如没有找到这样的链接，会尝试通过不带参数调用 fbsql_connect() 来创建一个。

### 返回值

成功时返回 `TRUE`， 或者在失败时返回 `FALSE`。

### 范例

Example #1 fbsql_close() example

    <?php
    $link = fbsql_connect("localhost", "_SYSTEM", "secret")
        or die("Could not connect");
    echo "Connected successfully";
    fbsql_close($link);
    ?>

### 参见

- fbsql_connect() - Open a connection to a FrontBase Server
- fbsql_pconnect() - Open a persistent connection to a FrontBase Server