laravel 安裝

1. 安裝composer.
2. 進入nginx主目錄 cd /Applications/MAMP/htdocs/
3. 設置國內鏡像，執行 composer config -g repo.packagist composer https://packagist.phpcomposer.com
4. 下載laravel, composer global require "laravel/installer
5. 新建laravel項目composer create-project laravel/laravel ldemo --prefer-dist。安裝成功後，看到htdocs目錄下有了新目錄ldemo。須要看到vendor目錄下有了autoload.php纔算安裝成功。若是看到有報錯信息，例如

   - Installing paragonie/random_compat (v9.99.99): Downloading (failed)       
   The "https://api.github.com/repos/paragonie/random_compat/zipball/84b4dfb120c6f9b4ff7b3685f9b8f1aa365a0c95" file could not be downloaded: failed to open stream: Operation timed out
   Retrying with degraded mode, check https://getcomposer.org/doc/articles/troubleshooting.md#degraded-mode for more info
   Downloading (failed)       
   Downloading (failed)       
   Downloading (failed)    Failed to download paragonie/random_compat from dist: The "https://api.github.com/repos/paragonie/random_compat/zipball/84b4dfb120c6f9b4ff7b3685f9b8f1aa365a0c95" file could not be downloaded: failed to open stream: Operation timed out
   Now trying to download from source

那麼須要從新下載random_compat.
執行 composer require paragonie/random_compat:2.*

6. 生成key. php artisan key:generate
7. 把項目主目錄設到ldemo/public目錄下，訪問http://localhost/.