rrd_first
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    PHP Manual»RRD Functions»rrd_first

    rrd_first

    (PECL rrd >= 0.9.0)

    rrd_first — Gets the timestamp of the first sample from rrd file

    Description

    function rrd_first(string $file, int $raaindex = 0): int

    Returns the first data sample from the specified RRA of the RRD file.

    Parameters

    file
    RRD database file name.
    raaindex
    The index number of the RRA that is to be examined. Default value is 0.

    Return Values

    Integer number of unix timestamp, or false on failure.

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