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<?
## the following line is only needed if built as a self-contained
## extension. If you build the rrdtool module as an embedded
## extension, the rrd_* functions will always be available, so you
## do not need the dl() call.
dl("rrdtool.so");
##
## demonstration of the rrd_graph() command
##
$opts = array( "--start", "-4d",
"DEF:in=/dir/router-port2.rrd:input:AVERAGE",
"DEF:out=/dir/router-port2.rrd:output:AVERAGE",
"LINE2:in#0000ff:Incoming Traffic Avg.",
"PRINT:in:AVERAGE:incoming\: %1.2lf b/s",
"PRINT:in:AVERAGE:incoming2\: %1.2lf b/s"
);
$ret = rrd_graph("/some-dir/router-port2.gif", $opts, count($opts));
##
## if $ret is an array, then rrd_graph was successful
##
if ( is_array($ret) )
{
echo "Image size: $ret[xsize] x $ret[ysize]\n";
##
## all results from any PRINT commands will be
## in the array $ret[calcpr][..]
##
echo "rrd_graph1 print results: \n";
for ($i = 0; $i < count($ret[calcpr]); $i++)
echo $ret[calcpr][$i] . "\n";
}
else
{
$err = rrd_error();
echo "rrd_graph() ERROR: $err\n";
}
?>
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