(PHP 7 >= 7.2.0)
imageopenpolygon — Draws an open polygon
$image
, array $points
, int $num_points
, int $color
) : boolAlternative signature (as of PHP 8.0.0)
$image
, array $points
, int $color
) : bool
imageopenpolygon() draws an open polygon on the given
image
. Contrary to imagepolygon(),
no line is drawn between the last and the first point.
image
O resursă - imagine, întoarsă de una din funcțiile de creare a imaginilor, cum ar fi imagecreatetruecolor().
points
An array containing the polygon's vertices, e.g.:
points[0] | = x0 |
points[1] | = y0 |
points[2] | = x1 |
points[3] | = y1 |
num_points
Total number of points (vertices), which must be at least 3.
If this parameter is omitted as per the second signature,points
must have an even number of elements, and num_points
is
assumed to be count($points)/2
.
color
Un identificator al culorii create cu imagecolorallocate().
Întoarce valoarea true
în cazul
succesului sau false
în cazul eșecului.
Example #1 imageopenpolygon() 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
imageopenpolygon($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);
?>
Exemplul de mai sus va afișa ceva similar cu: