(PECL rrd >= 0.9.0)
RRDUpdater::update — Update the RRD database file
$values
[, string $time
= time()
] )Updates the RRD file defined via RRDUpdater::__construct(). The file is updated with a specific values.
valuesData for update. Key is data source name.
timeTime value for updating the RRD with a particulat data. Default value is current time.
成功时返回 TRUE， 或者在失败时返回 FALSE。
Throws a Exception on error.
Example #1 RRDUpdater::update() examples
<?php
$updator = new RRDUpdater("speed.rrd");
//updates the data source "speed" with value "12411"
//for time defined by timestamp "920807700"
$updator->update(array("speed" => "12411"), "920807700");
?>