bool imagepolygon ( resource image, array points, int num_points, int color )
imagepolygon() creates a polygon in image id.
points is a PHP array containing the
polygon's vertices, i.e. points[0] = x0, points[1] = y0, points[2]
= x1, points[3] = y1, etc. num_points is
the total number of points (vertices).
Example 1. imagepolygon() example
<?php // create a blank image $image = imagecreatetruecolor(400, 300);
// fill the background color $bg = imagecolorallocate($image, 0, 0, 0);
// choose a color for the polygon $col_poly = imagecolorallocate($image, 255, 255, 255);