imagepolygon

(PHP 4, PHP 5, PHP 7)

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

imagepolygon() ��ͼ���д���һ������Ρ�points ��һ�� PHP ���飬�����˶���εĸ����������꣬�� points[0] = x0��points[1] = y0��points[2] = x1��points[3] = y1���Դ����ơ�num_points �Ƕ����������

Example #1 imagepolygon() ����

<?php
// create a blank image
$image imagecreatetruecolor(400300);

// fill the background color
$bg imagecolorallocate($image000);

// choose a color for the polygon
$col_poly imagecolorallocate($image255255255);

// draw the polygon
imagepolygon($image,
             array (
                    
00,
                    
100200,
                    
300200
             
),
             
3,
             
$col_poly);

// output the picture
header("Content-type: image/png");
imagepng($image);

?>

�μ� imagecreate() �� imagecreatetruecolor()��