(PECL paradox >= 1.0.0)
px_close — Closes a paradox database
$pxdoc
Closes the paradox database. This function will not close the file. You will have to call fclose() afterwards.
pxdoc
Resource identifier of the paradox database as returned by px_new().
成功时返回 TRUE, 或者在失败时返回 FALSE.
TRUE
FALSE