Laravel -即使PHP版本是必需的，也不能安装软件包

Question

在我的项目中安装一些composer软件包时，我遇到了问题。

Problem 1
    - Installation request for spatie/image-optimizer 1.1.5 -> satisfiable by spatie/image-optimizer[1.1.5].
    - spatie/image-optimizer 1.1.5 requires php ^7.2 -> your PHP version (7.1.14) does not satisfy that requirement.
  Problem 2
    - Installation request for spatie/laravel-feed 2.2.1 -> satisfiable by spatie/laravel-feed[2.2.1].
    - spatie/laravel-feed 2.2.1 requires php ^7.2 -> your PHP version (7.1.14) does not satisfy that requirement.
  Problem 3
    - Installation request for spatie/laravel-newsletter 4.5.0 -> satisfiable by spatie/laravel-newsletter[4.5.0].
    - spatie/laravel-newsletter 4.5.0 requires php ~7.2 -> your PHP version (7.1.14) does not satisfy that requirement.
  Problem 4
    - Installation request for spatie/laravel-referer 1.4.0 -> satisfiable by spatie/laravel-referer[1.4.0].
    - spatie/laravel-referer 1.4.0 requires php ^7.2 -> your PHP version (7.1.14) does not satisfy that requirement.
  Problem 5
    - Installation request for spatie/laravel-sitemap 5.3.0 -> satisfiable by spatie/laravel-sitemap[5.3.0].
    - spatie/laravel-sitemap 5.3.0 requires php ^7.2 -> your PHP version (7.1.14) does not satisfy that requirement.
  Problem 6
    - spatie/image-optimizer 1.1.5 requires php ^7.2 -> your PHP version (7.1.14) does not satisfy that requirement.
    - spatie/image 1.7.2 requires spatie/image-optimizer ^1.0 -> satisfiable by spatie/image-optimizer[1.1.5].
    - Installation request for spatie/image 1.7.2 -> satisfiable by spatie/image[1.7.2].

尽管我的PHP版本是7.2.1，但这些包没有通过composer.json验证，即无法安装。PHP版本也是7.2.1。(使用标准过程phpinfo()和php -v检查它们。

我正在使用MAMP版本4.4.1，列出的最新可配置PHP版本是7.2.1 (这是可以接受的，因为这些包的需求范围从7.1到7.2。

https://github.com/spatie/image-optimizer/blob/master/composer.json#L19

https://github.com/spatie/laravel-newsletter/blob/master/composer.json#L20

https://github.com/spatie/laravel-feed/blob/master/composer.json#L33

https://github.com/spatie/laravel-referer/blob/master/composer.json#L19

https://github.com/spatie/laravel-sitemap/blob/master/composer.json#L19

正如我已经说过的，PHP版本在Apache和CLI端以及MAMP方面都很不错。

PHP 7.2.1 (cli) (built: Jan 15 2018 12:20:50) ( NTS )
Copyright (c) 1997-2017 The PHP Group
Zend Engine v3.2.0, Copyright (c) 1998-2017 Zend Technologies

MAMP配置：

​

MAMP与主机相关的配置：

​

​

将PHP升级到版本7.3可能会解决这个问题，但我想跳过这一点，因为它必须在不需要MAMP帮助的情况下手动完成(因为我的MAMP版本是许可的，我需要另一个许可证才能在其中获得内置的版本)。

谢谢!

Answer 1

不确定是什么原因导致的，除了定义的自定义版本在您的composer.json

{
    "config": {
        "platform": {
            "php": "7.1.14"
        }
    },

要解决这个问题，您可以告诉composer忽略该版本：

composer require spatie/image-optimizer --ignore-platform-reqs