PHP编译错误:“不能在数组中使用空数组元素”

时间:2021-09-25 15:40:00

I have a Laravel 5 project that is using the bepsvpt/secure-headers package with the following config file:

我有一个Laravel 5项目使用bepsvpt / secure-headers包和以下配置文件:

config/secure-headers.php

<?php

return [
    'x-content-type-options' => 'nosniff',
    'x-download-options' => 'noopen',
    'x-frame-options' => 'sameorigin',
    'x-permitted-cross-domain-policies' => 'none',
    'x-xss-protection' => '1; mode=block',

    /*
     * Referrer-Policy
     *
     * Reference: https://w3c.github.io/webappsec-referrer-policy
     *
     * Available Value: 'no-referrer', 'no-referrer-when-downgrade', 'origin', 'origin-when-cross-origin',
     *                  'same-origin', 'strict-origin', 'strict-origin-when-cross-origin', 'unsafe-url'
     */

    'referrer-policy' => 'strict-origin-when-cross-origin',

    'hsts' => [
        'enable' => env('SECURITY_HEADER_HSTS_ENABLE', false),
        'max-age' => 15552000,
        'include-sub-domains' => false,
    ],

    /*
     * Content Security Policy
     *
     * Reference: https://developer.mozilla.org/en-US/docs/Web/Security/CSP
     *
     * csp will be ignored if custom-csp is not null.
     *
     * Note: custom-csp does not support report-only.
     */

    'custom-csp' => env('SECURITY_HEADER_CUSTOM_CSP', null),

    'csp' => [
        'report-only' => false,

        'report-uri' => env('CONTENT_SECURITY_POLICY_REPORT_URI', false),,

        'upgrade-insecure-requests' => false,

        'base-uri' => [
            //
        ],

        'default-src' => [
            //
        ],

        'child-src' => [
            //
        ],

        'script-src' => [
            'allow' => [
                //
            ],

            'hashes' => [
                // ['sha256' => 'hash-value'],
            ],

            'nonces' => [
                //
            ],

            'self' => false,

            'unsafe-inline' => false,

            'unsafe-eval' => false,
        ],

        'style-src' => [
            'allow' => [
                //
            ],

            'self' => false,

            'unsafe-inline' => false,
        ],

        'img-src' => [
            'allow' => [
                //
            ],

            'types' => [
                //
            ],

            'self' => false,

            'data' => false,
        ],

        /*
         * The following directives are all use 'allow' and 'self' flag.
         *
         * Note: default value of 'self' flag is false.
         */

        'font-src' => [
            //
        ],

        'connect-src' => [
            //
        ],

        'form-action' => [
            //
        ],

        'frame-ancestors' => [
            //
        ],

        'media-src' => [
            //
        ],

        'object-src' => [
            //
        ],

        /*
         * plugin-types only support 'allow'.
         */

        'plugin-types' => [
            //
        ],
    ],
];

When I try to run the application (web request or php artisan), I get the following error:

当我尝试运行应用程序(Web请求或php工匠)时,我收到以下错误:

PHP Fatal error:  Cannot use empty array elements in arrays in C:\Web\myapp\config\secure-headers.php on line 4

Of course, line 4 of the file looks totally fine!

当然,该文件的第4行看起来完全没问题!

What is the issue here?

这是什么问题?

1 个解决方案

#1


79  

This error, which is not documented anywhere I can find online, comes from having two commas in a row with nothing between them inside the array.

这个错误在我可以在网上找到的任何地方都没有记录,来自连续两个逗号,它们在数组中没有任何内容。

In my case, this actually appeared on line 42 of the file, not line 4 as indicated by the error message, which sounds like a bug in the compiler which identifies the first item in the array instead of the actual location of the "empty array element".

在我的情况下,这实际上出现在文件的第42行,而不是错误消息所指示的第4行,这听起来像编译器中的错误,它识别数组中的第一项而不是“空数组的实际位置”元件”。

#1


79  

This error, which is not documented anywhere I can find online, comes from having two commas in a row with nothing between them inside the array.

这个错误在我可以在网上找到的任何地方都没有记录,来自连续两个逗号,它们在数组中没有任何内容。

In my case, this actually appeared on line 42 of the file, not line 4 as indicated by the error message, which sounds like a bug in the compiler which identifies the first item in the array instead of the actual location of the "empty array element".

在我的情况下,这实际上出现在文件的第42行,而不是错误消息所指示的第4行,这听起来像编译器中的错误,它识别数组中的第一项而不是“空数组的实际位置”元件”。