使用composer install命令

Your requirements could not be resolved to an installable set of packages.

  Problem 1
    - This package requires php ^7.2.5 but your PHP version (7.2.1) does not satisfy that requirement.
  Problem 2
    - laravel/framework v7.0.6 requires php ^7.2.5 -> your PHP version (7.2.1) does not satisfy that requirement.
    - laravel/framework v7.0.5 requires php ^7.2.5 -> your PHP version (7.2.1) does not satisfy that requirement.
    - laravel/framework v7.0.4 requires php ^7.2.5 -> your PHP version (7.2.1) does not satisfy that requirement.
    - laravel/framework v7.0.3 requires php ^7.2.5 -> your PHP version (7.2.1) does not satisfy that requirement.
    - laravel/framework v7.0.2 requires php ^7.2.5 -> your PHP version (7.2.1) does not satisfy that requirement.
    - laravel/framework v7.0.1 requires php ^7.2.5 -> your PHP version (7.2.1) does not satisfy that requirement.
    - laravel/framework v7.0.0 requires php ^7.2.5 -> your PHP version (7.2.1) does not satisfy that requirement.
    - laravel/framework 7.x-dev requires php ^7.2.5 -> your PHP version (7.2.1) does not satisfy that requirement.
    - Installation request for laravel/framework ^7.0 -> satisfiable by laravel/framework[7.x-dev, v7.0.0, v7.0.1, v7.0.2, v7.0.3, v7.0.4, v7.0.5, v7.0.6].

 

 

出现以上代码。

问:问题仍没解决,这代码啥意思,有啥解决方法。

我正在安装高版本的php。

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