function make_graph_multi_line($title, $data_min, $data_avg, $data_max, $is_bar_graph)
{
include 'phpgraphlib.php';
$graph = new PHPGraphLib(780, 300);
if ($is_bar_graph == 'true') {
$graph->setBars(true);
$graph->setLine(false);
} else {
$graph->setBars(false);
$graph->setLine(true);
}
$graph->setDataPoints(true);
$graph->setDataPointSize(4);
$graph->setDataPointColor('purple');
$graph->setLegend(true);
if (!isset($data_min)) {
$graph->addData($data_avg);
$graph->addData($data_max);
if ($is_bar_graph == 'true') {
$graph->setBarColor('purple', 'red');
} else {
$graph->setLineColor('purple', 'red');
}
$graph->setLegendTitle('avg', 'max');
} else {
$graph->addData($data_min);
$graph->addData($data_avg);
$graph->addData($data_max);
if ($is_bar_graph == 'true') {
$graph->setBarColor('blue', 'purple', 'red');
} else {
$graph->setLineColor('blue', 'purple', 'red');
}
$graph->setLegendTitle('min', 'avg', 'max');
}
$graph->setTitle($title);
$graph->setTitleColor("88,89,91");
$graph->setXValuesVertical(true);
$graph->createGraph();
}