imagepolygon

(PHP 4, PHP 5, PHP 7)

Draws a polygon

bool imagepolygon ( resource $image, array $points, int $num_points, int $color )

imagepolygon() creates a polygon in the given image.

Parameters:

image

An image resource, returned by one of the image creation functions, such as imagecreatetruecolor().

points

An array containing the polygon's vertices, e.g.:

points[0]	= x0
points[1]	= y0
points[2]	= x1
points[3]	= y1

num_points

Total number of points (vertices).

color

A color identifier created with imagecolorallocate().

Returns:

Returns TRUE on success or FALSE on failure.

Examples:

imagepolygon() example

<?php
// Create a blank image
$image = imagecreatetruecolor(400, 300);
 
// Allocate a color for the polygon
$col_poly = imagecolorallocate($image, 255, 255, 255);
 
// Draw the polygon
imagepolygon($image, array(
        0,   0,
        100, 200,
        300, 200
    ),
    3,
    $col_poly);
 
// Output the picture to the browser
header('Content-type: image/png');
 
imagepng($image);
imagedestroy($image);
?>

The above example will output something similar to: