我已经安装了 Composer，现在我正在尝试在我的项目文件夹中安装 mpdf。我执行了以下命令composer require mpdf/mpdf。之后我收到以下错误：
Using version ^8.0 for mpdf/mpdf
./composer.json has been created
Running composer update mpdf/mpdf
Loading composer repositories with package information
Updating dependencies
Your requirements could not be resolved to an installable set of packages.
Problem 1
- mpdf/mpdf[v8.0.0, ..., v8.0.3] require php ^5.6 || ~7.0.0 || ~7.1.0 || ~7.2.0 || ~7.3.0 -> your php version (8.0.7) does not satisfy that requirement.
- mpdf/mpdf[v8.0.4, ..., v8.0.7] require php ^5.6 || ~7.0.0 || ~7.1.0 || ~7.2.0 …