hello ,我在服务器进行composer.install报如下错误:
Problem 1
This package requires php >=5.6.4 but your PHP version (5.5.9) does not satisfy that requirement.
Problem 2
Installation request for laravel/framework v5.4.15 -> satisfiable by laravel/framework[v5.4.15].
laravel/framework v5.4.15 requires php >=5.6.4 -> your PHP version (5.5.9) does not satisfy that requirement.
看样子是php版本的问题 怎么升级服务器php版本呢