// Fake some suitable random data $now = time(); $datax = array($now); for ($i = 0; $i < 360; $i += 10) { $datax[] = $now + $i; } $n = count($datax); $datay = array(); for ($i = 0; $i < $n; ++$i) { $datay[] = rand(30, 150); } // Setup the basic graph $graph = new Graph\Graph(324, 250); $graph->SetMargin(40, 40, 30, 70); $graph->title->Set('Date: ' . date('Y-m-d', $now)); $graph->SetAlphaBlending(); // Setup a manual x-scale (We leave the sentinels for the // Y-axis at 0 which will then autoscale the Y-axis.) // We could also use autoscaling for the x-axis but then it // probably will start a little bit earlier than the first value // to make the first value an even number as it sees the timestamp // as an normal integer value. $graph->SetScale("intlin", 0, 200, $now, $datax[$n - 1]); // Setup the x-axis with a format callback to convert the timestamp // to a user readable time $graph->xaxis->SetLabelFormatCallback('TimeCallback'); $graph->xaxis->SetLabelAngle(90); // Create the line $p1 = new Plot\LinePlot($datay, $datax); $p1->SetColor("blue"); // Set the fill color partly transparent