(PECL rrd >= 0.9.0)
rrd_xport — Exports the information about RRD database
$options): arrayExports the information about RRD database file. This data can be converted to XML file via user space PHP script and then restored back as RRD database file.
optionsArray of options for the export, see rrd xport man page.
Array with information about RRD database file, 或者在失敗時(shí)返回 false.