# ibase_close

(PHP 5, PHP 7 < 7.4.0)

ibase_close — Close a connection to an InterBase database

### 说明

ibase_close(resource `$connection_id` = `null`): bool

Closes the link to an InterBase database that's associated with a connection id returned from ibase_connect(). Default transaction on link is committed, other transactions are rolled back.

### 参数

`connection_id`
  An InterBase link identifier returned from ibase_connect(). If omitted, the last opened link is assumed.

### 返回值

成功时返回 `true`， 或者在失败时返回 `false`。

### 参见

- ibase_connect() - Open a connection to a database
- ibase_pconnect() - Open a persistent connection to an InterBase database

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