(PECL rrd >= 0.9.0) Restores the RRD file from XML dump.

(PECL rrd >= 0.9.0) Creates image from a data.

(PECL rrd >= 0.9.0) Tunes some RRD database file header options.

(PECL rrd >= 0.9.0) Gets information about rrd file

(PECL rrd >= 0.9.0) Creates rrd database file

(PECL rrd >= 1.1.2) Close any outstanding connection to rrd caching daemon

(PECL rrd >= 0.9.0) Gets information about last updated data.

(PECL rrd >= 0.9.0) Gets latest error message.

(PECL rrd >= 1.0.0) Gets information about underlying rrdtool library

(PECL rrd >= 0.9.0) Fetch the data for graph as array.