PHP imagearc() function usage and example to draw an elliptical arc

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imagearc — Used to draw an elliptical arc.

Syntax

bool imagearc ( resource $image , int $cx , int $cy , int $w , int $h , int $s , int $e , int $color )

imagearc() draws an elliptical arc centered at cx, cy (top left corner of the image is 0, 0) in the image represented by image.

w and h specify the width and height of the ellipse, the starting and ending points are specified by the s and e parameters in degrees. 0° is located at the three o'clock position, and is drawn in a clockwise direction.

Example

<?php
$img = imagecreatetruecolor(200, 200); // Create a 200x200 image
$white = imagecolorallocate($img, 255, 255, 255); // Color
// Draw an elliptical arc
imagearc($img, 140, 75, 50, 50, 0, 360, $white);
// Output image in browser
header("Content-type: image/png");
imagepng($img);
imagedestroy($img);
?>

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