Close a connection to an InterBase database

# ibase_close

(PHP 5, PHP 7 < 7.4.0)

ibase_close — Close a connection to an InterBase database

### Description

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.

### Parameters

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

### Return Values

Returns `true` on success or `false` on failure.

### See Also

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

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