我使用Web推送库发送推送通知https://github.com/web-push-libs/web-push-php
尝试发送推送通知时出现内部错误
我检查了两个PHP版本：7.1.22，7.2.9 -1
Apache错误日志抛出：
[：错误][客户端：：1：33302] PHP解析错误：语法错误，意外的'？'，在第41行的/PWA/web-push-php-example/供应商/minishlink/web-push/src/Subscription.php中需要变量（T_VARIABLE），引用者：http://localhost/PWA/web-push-php-example/src/
我也尝试在Ngnix /错误日志：
17时22分36秒[错误] 20232编号20232：*46 FastCGI在标准错误中发送：“PHP消息：PHP注意事项：未定义的索引：端点在/var/www. html/PWA/web-push-php-example/vendor/minishlink/web-push/src/subscription. php在第69行PHP消息：PHP致命错误：未捕获的类型错误：传递给Minishlink\WebPush\Subscription：：__construct（）的参数1必须是字符串类型，给定空值，在第72行的/var/www/html/PWA/web-push-php-example/vendor/minishlink/web-push/src/Subscription. php中调用，并在/var/www/html/PWA/web-push-php-example/vendor/minishlink/web-push/src/Subscription.php中定义：39堆栈跟踪：在第39行的/var/www/html/PWA/web-push-php-example/供应商/minishlink/web-push/src/订阅. php中抛出”，同时从上游阅读响应报头，客户端：127.0.0.1，服务器：local.pwa.com，请求：“POST/PWA/web-推送-php-示例/src/发送_推送_通知. php HTTP/2.0”，上游：“fastcgi：//unix：/运行/php/php7.2-fpm.sock：“，主机：“本地主机”，引用地址：“https://localhost/PWA/web-push-php-example/src/“
PHP代码：

<?php
require __DIR__ . '/../vendor/autoload.php';
use Minishlink\WebPush\WebPush;
use Minishlink\WebPush\Subscription;

// here I'll get the subscription endpoint in the POST parameters
// but in reality, you'll get this information in your database
// because you already stored it (cf. push_subscription.php)
$sub =json_decode(file_get_contents('php://input'), true);
$sub_endpoint =$sub['endpoint'];
$sub_publicKey =$sub['publicKey'];
$sub_authToken =$sub['authToken'];
$sub_contentEncoding =$sub['contentEncoding'];
$notifications = [
    [
        'subscription' => Subscription::create([            
            'endPoint' => $sub_endpoint,
            'publicKey' => $sub_publicKey,            
            'authToken' => $sub_authToken,            
            'contentEncoding' => $sub_contentEncoding, // one of PushManager.supportedContentEncodings
        ]),
        'payload' => '{msg:"test"}',
    ],
];

$auth = array(
    'VAPID' => array(
        'subject' => 'mailto:me@website.com', // can be a mailto: or your website address
        'publicKey' => 'BCmti7ScwxxVAlB7WAyxoOXtV7J8vVCXwEDIFXjKvD-ma-yJx_eHJLdADyyzzTKRGb395bSAtxlh4wuDycO3Ih4', // (recommended) uncompressed public key P-256 encoded in Base64-URL
        'privateKey' => 'HJ*******************' // (recommended) in fact the secret multiplier of the private key encoded in Base64-URL
        //'pemFile' => './keys/private_key.pem' // if you have a PEM file and can link to it on your filesystem        
    ),
);
$defaultOptions = array(
    'TTL' => 300, // defaults to 4 weeks
    'urgency' => 'normal', // protocol defaults to "normal"
    'topic' => 'push', // not defined by default - collapse_key
);

$webPush = new WebPush($auth, $defaultOptions);

// send multiple notifications with payload

$webPush->flush();

// send one notification and flush directly
$webPush->sendNotification(
    $notifications[0]['subscription'],
    $notifications[0]['payload'], // optional (defaults null)
    true // optional (defaults false)
);