rrd_xport

(PECL rrd >= 0.9.0)

rrd_xport — Exports the information about RRD database

Descrierea

rrd_xport ( array $options ) : array

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.

Parametri

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

Valorile întoarse

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

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User Contributed Notes 2 notes

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mrezahamedany ¶

7 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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Peter R ¶

1 year ago


A small example of connecting to an rrdcached daemon (This one running on localhost, but works across network as well) and getting in and output bits from an interface.

$options = array(
    '--daemon', '127.0.0.1:42217',
    '--start', time() - 3600,
    'DEF:in_oct=rrdfile.rrd:INOCTETS:AVERAGE',
    'DEF:out_oct=rrdfile.rrd:OUTOCTETS:AVERAGE',
    'CDEF:in_bits=in_oct,8,*',
    'CDEF:out_bits=out_oct,8,*',
    'XPORT:in_bits',
    'XPORT:out_bits'
  );

$result = rrd_xport($options);

var_dump($result);

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