rrd_fetch

    (PECL rrd >= 0.9.0)

    rrd_fetch — Fetch the data for graph as array

    Description

    rrd_fetch(string $filename, array $options): array

    Gets data for graph output from RRD database file as array. This function has same result as rrd_graph(), but fetched data are returned as array, no image file is created.

    Parameters

    filename

    RRD database file name.

    options

    Array of options for resolution specification.

    Return Values

    Returns information about retrieved graph data.

    Improve This Page

    Learn How To Improve This Page • Submit a Pull Request • Report a Bug
    ＋add a note

    User Contributed Notes 1 note

    up
    -5
    stephanecharette at gmail dot com
    11 years ago
    For example, this worked for me:

    <?php
    $result     = rrd_fetch( "mydata.rrd", array( "AVERAGE", "--resolution", "60", "--start", "-1d", "--end", "start+1h" ) );
    ?>

    This will fetch all fields. You then have to use something like this to get to a specified rrd field:

    <?php
    foreach ( $result["data"]["myfield"] as $key => $value )
    {
    echo     "At timestamp $key, the value for myfield is $value.\n";
    }
    ?>
    ＋add a note
    To Top