环境安装:
php的swoole4.8扩展、imagick软件(已安装)、php的imagick扩展(已安装)、

设置php.ini:
grpc.enable_fork_support = 1
swoole.use_shortname = off

系统字库:
cjk 中日韩英文
yum -y install google-noto-sans-thai-fonts google-noto-sans-lao-fonts google-noto-sans-khmer-fonts google-noto-sans-myanmar-fonts

php依赖库：
composer require intervention/image

样例代码:

public function svgToImg(string $svgPath, string $meetId = '000', string $outputPath = null, string $format = 'png', int $resolution = 2048)
    {
        try {
            // 优先使用 Imagick 驱动（最稳定支持 SVG）
            $manager = new ImageManager([
                'driver' => 'imagick'
            ]);

            $svgContent = file_get_contents($svgPath);
            
            $image = $manager->make($svgContent);
            
            // 处理分辨率参数（默认 2k = 2048px）
            if ($resolution !== 2048) {
                $image->resize($resolution, $resolution, function ($constraint) {
                    $constraint->aspectRatio();
                });
            }
            
            $fileName = "summary_{$meetId}_" . Str::get_random_code(5);
            // 处理默认输出路径
            if (empty($outputPath)) {
                $ext        = (in_array(strtolower($format), ['jpeg', 'jpg'])) ? 'jpg' : 'png';
                $outputPath = sys_get_temp_dir() . DIRECTORY_SEPARATOR . $fileName . '.' . $ext;
            }
            
            // 确保输出目录存在
            $outputDir = dirname($outputPath);
            if (!file_exists($outputDir)) {
                mkdir($outputDir, 0755, true);
            }
            
            // 保存图片
            if (in_array(strtolower($format), ['jpeg', 'jpg'])) {
                $image->save($outputPath, 90);
            } else {
                $image->save($outputPath);
            }
            
            // 返回图片路径
            $imagePath = realpath($outputPath);
            if (!file_exists($imagePath)) {
                throw new \Exception('svgToImageV2===图片文件不存在==' . $outputPath);
            }
        
            return $imagePath;
        } catch (\Exception $e) {
            throw new \Exception("svgToImageV2===转换失败: " . $e->getMessage());
        }
    }

1、安装（官方文档）：
pip install -U "langgraph-cli[inmem]"

2、创建项目骨架（交互式）:
langgraph new path/to/your/app

3、安装项目依赖：
cd path/to/your/app
pip install -e .

4、配置.env文件:

# To separate your traces from other application
LANGSMITH_PROJECT=new-agent

# Add API keys for connecting to LLM providers, data sources, and other integrations here
# 要去langsmith搞个账号获取api秘钥
LANGSMITH_API_KEY=xxxxx

5、运行:
langgraph dev

注意事项:
windows环境下powershell，运行前设置

$env:PYTHONIOENCODING="utf-8"
$env:PYTHONUTF8="1"