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rrd_first

(PECL rrd >= 0.9.0)

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

説明

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

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

パラメータ

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

戻り値

Integer number of unix timestamp,失敗した場合に false を返します.