(PHP 4, PHP 5, PHP 7)
imagearc — Draws an arc
$image
, int $cx
, int $cy
, int $width
, int $height
, int $start
, int $end
, int $color
)imagearc() draws an arc of circle centered at the given coordinates.
imageAn image resource, returned by one of the image creation functions, such as imagecreatetruecolor().
cxx-coordinate of the center.
cyy-coordinate of the center.
widthThe arc width.
heightThe arc height.
startThe arc start angle, in degrees.
endThe arc end angle, in degrees. 0° is located at the three-o'clock position, and the arc is drawn clockwise.
colorA color identifier created with imagecolorallocate().
Returns TRUE on success or FALSE on failure.
Example #1 Drawing a circle with imagearc()
<?php
// create a 200*200 image
$img = imagecreatetruecolor(200, 200);
// allocate some colors
$white = imagecolorallocate($img, 255, 255, 255);
$red = imagecolorallocate($img, 255, 0, 0);
$green = imagecolorallocate($img, 0, 255, 0);
$blue = imagecolorallocate($img, 0, 0, 255);
// draw the head
imagearc($img, 100, 100, 200, 200, 0, 360, $white);
// mouth
imagearc($img, 100, 100, 150, 150, 25, 155, $red);
// left and then the right eye
imagearc($img, 60, 75, 50, 50, 0, 360, $green);
imagearc($img, 140, 75, 50, 50, 0, 360, $blue);
// output image in the browser
header("Content-type: image/png");
imagepng($img);
// free memory
imagedestroy($img);
?>
The above example will output something similar to: