swoole使用JSONP方式解决跨域

文档说明： 只记录关键地方； 文档创建时间：2023-08-06；
目标：使用 JSONP 方式解决跨域
备注： 常用到的功能记录一下，方便复制

<?php

use Swoole\Http\Request;
use Swoole\Http\Response;
use Swoole\Coroutine\Http\Server;
use function Swoole\Coroutine\run;

run(function () {
    $server = new Server('0.0.0.0', 9502, false);
    $server->handle('/', function (Request $request, Response $response) {

        $response->header('Content-Type', 'application/javascript; charset=utf-8');

        $callback = !empty($request->get['callback']) ? $request->get['callback'] : 'callback';

        $result = [];
        try {
            $result = [
                'code' => 200,
                "msg" => 'success',
                "data" => []
            ];
        } catch (\RuntimeException $e) {
            echo $e->getMessage();
            $result = ["code" => 500, 'msg' => 'system error' . $e->getMessage()];
        }

        $response->end($callback . "(" . json_encode($result, JSON_UNESCAPED_UNICODE) . ')');
    });

    $server->start();
});