Web php libriary :引发内部错误

Question

我使用web推送库发送推送通知https://github.com/web-push-libs/web-push-php

当我试图推送通知时，我得到了一个内部错误

我签入了两个PHP版本:7.1.22 7.2.9-1

Apache错误日志抛出：

错误Parse错误:语法错误，意外的'?'，第41行/PWA/web-push-php-example/vendor/minishlink/web-push/src/Subscription.php中的期望变量(T_VARIABLE)，referer：http://localhost/PWA/web-push-php-example/src/

我还在Ngnix / error日志中尝试过：

17:22:36 error 20232#20232：*46 FastCGI在stderr中发送："PHP消息: PHP通知:未定义的索引: Minishlink\WebPush\Subscription::__construct()第69行中的端点在第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:39堆栈跟踪中定义:在从上游读取响应头时，在第39行的/var/www/html/PWA/web-push-php-example/vendor/minishlink/web-push/src/Subscription.php中抛出，客户机: 127.0.0.1，服务器: local.pwa.com，请求："POST local.pwa.com HTTP/2.0"，上游：“referrer: //unix:/run/php/php7.2-fpm.sock：”，主机："localhost"，引用者："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)
);

Answer 1

@Harish，Constructor‘？应该可以从PHP7.1版本开始工作。我发现您的参数值有错误。

/var/www/html/PWA/web-push-php-example/vendor/minishlink/web-push/src/Subscription.php中调用的__construct()类型必须为空给定的字符串

由于错误日志指示端点值作为null传递，因此应该将其作为字符串值传递。

您传入通知的变量为endPoint，但在lib中它被分配为端点。

Answer 2

您确定您确实在运行PHP7.21或7.2吗？问题在于构造函数中的问号：

https://github.com/web-push-libs/web-push-php/blob/master/src/Subscription.php#L41-L43

从这个3v4l代码中可以看出，它适用于7.1以上的所有版本：

<?php
class X
{
    public function __construct(
        string $endpoint,
        ?string $publicKey = null,
        ?string $authToken = null,
        ?string $contentEncoding = null
    ) {
        $this->endpoint = $endpoint;

    }
}

$x = new X('blah', 'blahblah');

https://3v4l.org/A1XeN

代码的所有v5迭代都会产生错误：

Parse error: syntax error, unexpected '?', expecting variable (T_VARIABLE) in /in/A1XeN on line 6