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.
返り値
Integer number of unix timestamp, false if some error occurs.
