Web推送PHP库：抛出内部错误。

Question

Web推送PHP库：抛出内部错误。

phpservice-workerprogressive-web-appsweb-push

3

我使用了Web推送库发送推送通知：https://github.com/web-push-libs/web-push-php 在尝试发送推送通知时出现了内部错误。

我在PHP版本7.1.22和7.2.9-1上都进行了检查。 Apache错误日志显示：

[:error][client ::1:33302] PHP Parse error: syntax error, unexpected '?', expecting variable (T_VARIABLE) in /PWA/web-push-php-example/vendor/minishlink/web-push/src/Subscription.php on line 41, referer: http://localhost/PWA/web-push-php-example/src/ 我还在Nginx上尝试过，错误日志如下：

17:22:36 [error] 20232#20232: *46 FastCGI sent in stderr: "PHP message: PHP Notice: Undefined index: endpoint in /var/www/html/PWA/web-push-php-example/vendor/minishlink/web-push/src/Subscription.php on line 69 PHP message: PHP Fatal error: Uncaught TypeError: Argument 1 passed to Minishlink\WebPush\Subscription::__construct() must be of the type string, null given, called in /var/www/html/PWA/web-push-php-example/vendor/minishlink/web-push/src/Subscription.php on line 72 and defined in /var/www/html/PWA/web-push-php-example/vendor/minishlink/web-push/src/Subscription.php:39 Stack trace: thrown in /var/www/html/PWA/web-push-php-example/vendor/minishlink/web-push/src/Subscription.php on line 39" while reading response header from upstream, client: 127.0.0.1, server: local.pwa.com, request: "POST /PWA/web-push-php-example/src/send_push_notification.php HTTP/2.0", upstream: "fastcgi://unix:/run/php/php7.2-fpm.sock:", host: "localhost", referrer: "https://localhost/PWA/web-push-php-example/src/"

PHP代码如下：

<?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)
);

- Harish Karthick

这里有一个问题 https://github.com/web-push-libs/web-push-php/blob/master/src/Subscription.php#L41-L43。我必须说，我以前从未见过带有以 ? 开头的参数的 __construct()。这是怎么回事？顺便说一下，那个包的 Travis 构建失败了，你确定它实际上能正常工作吗？ - delboy1978uk

这个回答解决了你的问题吗？Web Push通知：如何使用Web Push PHP库？ - Ikenitenine

2个回答

1

@Harish，构造函数“？”应该从PHP版本7.1起运行。我发现您的参数值有误。

__construct()必须是字符串类型，但传递了null，在/var/www/html/PWA/web-push-php-example/vendor/minishlink/web-push/src/Subscription.php中调用

正如错误日志所示，端点值被传递为null，应将其作为字符串值传递。

您在通知中传递的变量为endPoint，但在库中分配为endpoint。

- Santhosh

网页内容由stack overflow 提供, 点击上面的

可以查看英文原文，
原文链接

- delboy1978uk · Accepted Answer

您确定您实际上正在运行PHP 7.21或7.2吗？问题出在这里构造函数中的问号：

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

正如您从这个3v4l代码中看到的，它适用于所有7.1以上版本：

<?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

所有v5版本的代码都会产生你的错误：

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