我的电脑中有多个PHP版本。我想使用PHP 5.6.27创建一个名为＆＃34; blog＆＃34;的新项目。我使用＆＃34; laravel new blog＆＃34;但它显示了这些错误：
Crafting application...
Loading composer repositories with package information
Installing dependencies (including require-dev) from lock file
Your requirements could not be resolved to an installable set of packages.
Problem 1
- This package requires php >=7.0.0 but your PHP version (5.6.27) does not satisfy that requirement.
Problem 2
- Installation request for doctrine/inflector v1.2.0 -> satisfiable by doctrine/inflector[v1.2.0].
- doctrine/inflector v1.2.0 requires php ^7.0 -> your PHP version (5.6.27) does not satisfy that requirement.
Problem 3
- Installation request for laravel/framework v5.5.2 -> satisfiable by laravel/framework[v5.5.2].
- laravel/framework v5.5.2 requires php >=7.0 -> your PHP version (5.6.27) does not satisfy that requirement.
Problem 4
- Installation request for swiftmailer/swiftmailer v6.0.1 -> satisfiable by swiftmailer/swiftmailer[v6.0.1].
- swiftmailer/swiftmailer v6.0.1 requires php >=7.0.0 -> your PHP version (5.6.27) does not satisfy that requirement