php怎么实现微信海报

$access_token = your-access-token;

$openid = your-openid;

$url = “https://api.weixin.qq.com/cgi-bin/user/info?access_token=”.$access_token.”&openid=”.$openid.”&lang=zh_CN”;

$result = file_get_contents($url);

$json_result = json_decode($result);

$headimgurl = $json_result->headimgurl;

// 1.创建画布

$canvas_width = 750;

$canvas_height = 1334;

$canvas = imagecreatetruecolor($canvas_width, $canvas_height);

// 2.获取背景图片

$background = imagecreatefrompng(background.png);

imagecopy($canvas, $background, 0, 0, 0, 0, $canvas_width, $canvas_height);

// 3.在画布上添加头像

$headimgurl = https://wx.qlogo.cn/mmopen/vi_32/XXXX/XXX/0;

$avatar = imagecreatefromjpeg($headimgurl);

imagecopymerge($canvas, $avatar, 50, 50, 0, 0, 200, 200, 100);

// 4.在画布上添加文字

$text = Hello,World!;

$font_size = 32;

$font_color = imagecolorallocate($canvas, 255, 255, 255);

$font_file = ./font.ttf;

imagettftext($canvas, $font_size, 0, 300, 100, $font_color, $font_file, $text);

// 5.将海报保存为图片

$save_path = ./poster.png;

imagepng($canvas, $save_path);

// 6.输出海报给用户

header(Content-Type: image/png);

echo file_get_contents($save_path);

// 7.释放画布和资源

imagedestroy($canvas);

imagedestroy($background);

imagedestroy($avatar);