rrd_xport

(PECL rrd >= 0.9.0)

rrd_xportExports the information about RRD database.

Опис

array rrd_xport ( array $options )

Exports 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.

Параметри

options

Array of options for the export, see rrd xport man page.

Значення, що повертаються

Array with information about RRD database file, FALSE when error occurs.

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User Contributed Notes 1 note

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mrezahamedany
6 years ago
an example that shows the usage of this method ( tested in php version 5.6.30 )

class Rrd{
    public function getData($id , $start , $end)
    {
        $step = 300 ;
        $rrdFile ="/path/to/file/'.$id.rrd";

        try{
            $options = ["--start", $start , "--end", $end ,"-- step",$step,"DEF:out=$rrdFile:name:AVERAGE", "XPORT:out:test"];
            $result = rrd_xport($options);
            $datas = $result['data'][0]['data'];
            foreach($datas as $data => $value){

                if( is_nan($value) === true ) $value = 0 ;
                    $output[] = [$data=>$value] ;
            }
            return json_encode($output);

        }catch (Exception $e){

            dd($e->getMessage());
        }

    }
}
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