imagearc
(PHP 4, PHP 5, PHP 7, PHP 8)
imagearc — Draws an arc
Description
imagearc(
GdImage
int
int
int
int
int
int
int
): bool
GdImage
$image,int
$center_x,int
$center_y,int
$width,int
$height,int
$start_angle,int
$end_angle,int
$color): bool
imagearc() draws an arc of circle centered at the given coordinates.
Parameters
-
image A GdImage object, returned by one of the image creation functions, such as imagecreatetruecolor().
center_x-
x-coordinate of the center.
center_y-
y-coordinate of the center.
width-
The arc width.
height-
The arc height.
start_angle-
The arc start angle, in degrees.
end_angle-
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().
Changelog
| Version | Description |
|---|---|
| 8.0.0 |
image expects a GdImage
instance now; previously, a valid gd resource was expected.
|
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);
?>The above example will output something similar to:
See Also
- imagefilledarc() - Draw a partial arc and fill it
- imageellipse() - Draw an ellipse
- imagefilledellipse() - Draw a filled ellipse
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