RRDUpdater::update

(PECL rrd >= 0.9.0)

RRDUpdater::update — Update the RRD database file

说明

public bool RRDUpdater::update ( array $values [, string $time = time() ] )

Updates the RRD file defined via RRDUpdater::__construct() . The file is updated with a specific values.

参数

values: Data for update. Key is data source name.
time: Time value for updating the RRD with a particulat data. Default value is current time.

返回值

成功时返回 TRUE ，或者在失败时返回 FALSE 。

错误／异常

Throws a Exception on error.

范例

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" );
 ?>