# ifx_close

(PHP 4, PHP 5 < 5.2.1)

ifx_close — Close Informix connection

### 说明

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

ifx_close() closes the link to an Informix database that's associated with the specified link identifier.

Note that this isn't usually necessary, as non-persistent open links are automatically closed at the end of the script's execution.

ifx_close() will not close persistent links generated by ifx_pconnect().

### 参数

`link_identifier`

  The link identifier. If not specified, the last opened link is assumed.

### 返回值

成功时返回 `TRUE`， 或者在失败时返回 `FALSE`。

### 范例

Example #1 Closing a Informix connection

    <?php
    $conn_id = ifx_connect ("mydb@ol_srv", "itsme", "mypassword");
    /* ... some queries and stuff ... */
    ifx_close($conn_id);
    ?>

### 参见

- ifx_connect() - Open Informix server connection
- ifx_pconnect() - Open persistent Informix connection