librería JpGraph,  PHP, mysql.

img->SetAntiAliasing(); 
$graph->SetMarginColor('gray'); 
//$graph->SetShadow(); 

// Setup margin and titles 
$graph->title->Set("Productos Mas Comprados"); 

$p1 = new PiePlot3D($array); 
$p1->SetSize(0.35); 
$p1->SetCenter(0.5); 

// Setup slice labels and move them into the plot 
$p1->value->SetFont(FF_FONT1,FS_BOLD); 
$p1->value->SetColor("black"); 
$p1->SetLabelPos(0.2); 

//$nombres=array("pepe","luis","miguel","alberto"); 
$p1->SetLegends($nombres); 

// Explode all slices 
$p1->ExplodeAll(); 

$graph->Add($p1); 
$graph->Stroke(); 
?>