Procedural PECL/rrd example

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## Procedural PECL/rrd example

Example #1 Procedural usage of rrd

    <?php$rrdFile = dirname(__FILE__) . "/speed.rrd";//create rrd filerrd_create($rrdFile, array(  "--start",920804400,  "DS:speed:COUNTER:600:U:U",  "RRA:AVERAGE:0.5:1:24",  "RRA:AVERAGE:0.5:6:10"  ));//update rrd filerrd_update($rrdFile, array(  "920804700:12345",  "920805000:12357"  ));//graph outputrrd_graph(dirname(__FILE__) . "/speed.png", array(  "--start", "920804400",  "--end", "920808000",  "--vertical-label", "m/s",  "DEF:myspeed=$rrdFile:speed:AVERAGE",  "CDEF:realspeed=myspeed,1000,*",  "LINE2:realspeed#FF0000" ));?>