webman用tp模板引擎写的网站怎么压缩html渲染输出

写个函数格式化一下即可：

/**
 * @param string $html
 * @return string
 */
function minify_html(string $html): string
{
    $html = str_replace(PHP_EOL,'',$html);
    $html = str_replace("
",'',$html);
    return preg_replace(
        [
            '/\>[^\S ]+/s',  // 删除标签后面空格
            '/[^\S ]+\</s',  // 删除标签前面的空格
            '/(\s)+/s'       // 将多个空格合并成一个
        ],
        [
            '>',
            '<',
            '\\1'
        ],
        $html
    );
}

中间件：

<?php
namespace app\middleware;

use Webman\MiddlewareInterface;
use Webman\Http\Response;
use Webman\Http\Request;
use function minify_html;

class MinifyHtml implements MiddlewareInterface
{
    public function process(Request $request, callable $handler) : Response
    {
        /** @var Response $response */
        $response = $handler($request);
        $content_type = (string)$response->getHeader('Content-Type');
        if ($content_type === 'text/html' || $content_type === '') {
            $response->withBody(minify_html($response->rawBody()));
        }
        return $response;
    }
}