(PHP 4, PHP 5, PHP 7)
imagearc — 锟斤拷锟斤拷圆锟斤拷
$image
, int $cx
, int $cy
, int $w
, int $h
, int $s
, int $e
, int $color
) : bool
imagearc() 锟斤拷
cx锟斤拷cy锟斤拷图锟斤拷锟斤拷锟较斤拷为 0, 0锟斤拷为锟斤拷锟斤拷锟斤拷
image 锟斤拷锟斤拷锟斤拷锟酵硷拷锟斤拷谢锟揭伙拷锟斤拷锟皆诧拷锟斤拷锟�w
锟斤拷 h 锟街憋拷指锟斤拷锟斤拷锟斤拷圆锟侥匡拷群透叨龋锟斤拷锟绞硷拷徒锟斤拷锟斤拷锟斤拷锟�
s 锟斤拷 e
锟斤拷锟斤拷锟皆角讹拷指锟斤拷锟斤拷0锟斤拷位锟斤拷锟斤拷锟斤拷锟斤拷位锟矫ｏ拷锟斤拷顺时锟诫方锟斤拷婊拷锟�
Example #1 锟斤拷 imagearc() 锟斤拷一锟斤拷圆
<?php
// 锟斤拷锟斤拷一锟斤拷 200X200 锟斤拷图锟斤拷
$img = imagecreatetruecolor(200, 200);
// 锟斤拷锟斤拷锟斤拷色
$white = imagecolorallocate($img, 255, 255, 255);
$black = imagecolorallocate($img, 0, 0, 0);
// 锟斤拷一锟斤拷锟斤拷色锟斤拷圆
imagearc($img, 100, 100, 150, 150, 0, 360, $black);
// 锟斤拷图锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷
header("Content-type: image/png");
imagepng($img);
// 锟酵凤拷锟节达拷
imagedestroy($img);
?>
锟轿硷拷 imageellipse()锟斤拷imagefilledellipse() 锟斤拷 imagefilledarc()锟斤拷