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rrd_fetch

(PECL rrd >= 0.9.0)

rrd_fetch — Fetch the data for graph as array.

说明

array rrd_fetch ( string $filename , array $options )

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.

参数

filename: RRD database file name.
options: Array of options for resolution specification.

返回值

Returns information about retrieved graph data.

在线手册：中文英文

PHP手册 - N: Fetch the data for graph as array.

用户评论:

Andrew Hodel (16-Aug-2011 02:33)

There is a third required argument to this function, if you pass just the 2 listed here the function will return no data. The third argument is the number of results you want, if you want everything simply pass count($OPTSARRAY) as arg3. <?php $opts = array ( "AVERAGE", "--start", '-1d'); print_r(rrd_fetch('./rrds/file.rrd', $opts, count($opts))); ?>