PHP Manual: Draw a filled polygon

Description

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

imagefilledpolygon creates a filled 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 x and y coordinates of the polygons vertices consecutively.
num_points: Total number of vertices, which must be at least 3.
color: A color identifier created with imagecolorallocate.

Return Values

Returns TRUE on success or FALSE on failure.

Examples

Example #1 imagefilledpolygon example


<?php
// set up array of points for polygon
$values = array(
            40,  50,  // Point 1 (x, y)
            20,  240, // Point 2 (x, y)
            60,  60,  // Point 3 (x, y)
            240, 20,  // Point 4 (x, y)
            50,  40,  // Point 5 (x, y)
            10,  10   // Point 6 (x, y)
            );

// create image
$image = imagecreatetruecolor(250, 250);

// allocate colors
$bg   = imagecolorallocate($image, 0, 0, 0);
$blue = imagecolorallocate($image, 0, 0, 255);

// fill the background
imagefilledrectangle($image, 0, 0, 249, 249, $bg);

// draw a polygon
imagefilledpolygon($image, $values, 6, $blue);

// flush image
header('Content-type: image/png');
imagepng($image);
imagedestroy($image);
?>

The above example will output something similar to:

Output of example : imagefilledpolygon()