终端返回报错，文件未能保存，终端输出如下：
PHP Warning: putenv() has been disabled for security reasons in phar:///usr/local/bin/composer/vendor/composer/xdebug-handler/src/Process.php on line 93
Warning: putenv() has been disabled for security reasons in phar:///usr/local/bin/composer/vendor/composer/xdebug-handler/src/Process.php on line 93
PHP Warning: putenv() has been disabled for security reasons in phar:///usr/local/bin/composer/src/Composer/Util/Platform.php on line 37
Warning: putenv() has been disabled for security reasons in phar:///usr/local/bin/composer/src/Composer/Util/Platform.php on line 37
Creating a "flarum/flarum" project at "./"
Installing flarum/flarum (v1.0.0)
- Downloading flarum/flarum (v1.0.0)
- Installing flarum/flarum (v1.0.0): Extracting archive
Install of flarum/flarum failed
[Symfony\Component\Process\Exception\RuntimeException]
The Process class relies on proc_open, which is not available on your PHP installation.
create-project [-s|--stability STABILITY] [--prefer-source] [--prefer-dist] [--prefer-install PREFER-INSTALL] [--repository REPOSITORY] [--repository-url REPOSITORY-URL] [--add-repository] [--dev] [--no-dev] [--no-custom-installers] [--no-scripts] [--no-progress] [--no-secure-http] [--keep-vcs] [--remove-vcs] [--no-install] [--ignore-platform-req IGNORE-PLATFORM-REQ] [--ignore-platform-reqs] [--ask] [--] [<package>] [<directory>] [<version>]
