imagearc (PHP 3, PHP 4, PHP 5) imagearc -- Draws an arc Descriptionbool imagearc ( resource 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.
Parameters
imageAn image resource, returned by one of the image creation functions,
such as imagecreatetruecolor(). cx
x-coordinate of the center
cy
y-coordinate of the center
width
The arc width
height
The arc height
start
The arc start angle, in degrees.
end
The arc end angle, in degrees.
0° is located at the three-o'clock position, and the arc is drawn
clockwise.
color
A color identifier created with
imagecolorallocate()
Return Values
Returns TRUE on success or FALSE on failure.
Examples
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);
?>
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The above example will output
something similar to: 
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