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

Processamento de Imagens PHP

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 at the center 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, and the starting and ending points are specified by the s and e parameters in degrees. 0° is located at the 3 o'clock position, and is drawn in a clockwise direction.

example

<?php
$img　=　imagecreatetruecolor(200,　200);//　create a　200*200　image
$white　　=　imagecolorallocate($img,　　　255,　　　255,　255);　//　color
//　draw an elliptical arc
imagearc($img,　140,　　75,　　50,　　50,　　0,　360,　$white);
//　browser output image
header("Content-type:　image/png");
imagepng($img);
imagedestroy($img);
?>

Processamento de Imagens PHP