Notice: Undefined variable: _SERVER in /opt/sifeng/index.php on line 22

Notice: Undefined variable: _SERVER in /opt/sifeng/index.php on line 22

Notice: Undefined variable: _SERVER in /opt/sifeng/index.php on line 22

Notice: Undefined variable: _SERVER in /opt/sifeng/thinkphp/library/think/Loader.php on line 63

Fatal error: Uncaught think\exception\ErrorException: Undefined variable: _SERVER in /opt/sifeng/thinkphp/library/think/Loader.php:63 Stack trace: #0 /opt/sifeng/thinkphp/library/think/Loader.php(63): think\Error::appError(8, 'Undefined varia...', '/opt/sifeng/thi...', 63, Array) #1 /opt/sifeng/thinkphp/library/think/App.php(873): think\Loader::getRootPath() #2 /opt/sifeng/thinkphp/library/think/App.php(153): think\App->getAppPath() #3 /opt/sifeng/thinkphp/library/think/App.php(130): think\App->path('') #4 [internal function]: think\App->__construct('') #5 /opt/sifeng/thinkphp/library/think/Container.php(439): ->newInstanceArgs(Array) #6 /opt/sifeng/thinkphp/library/think/Container.php(284): think\Container->invokeClass('think\\App', Array) #7 /opt/sifeng/thinkphp/library/think/Container.php(132): think\Container->make('think\\App', Array, false) #8 /opt/sifeng/thinkphp/library/think/exception/Handle.php(42): think\Container::get('app') #9 /opt/sifeng/thinkphp/library/think/Error.php(51): think\exception\Handle->report(Ob in /opt/sifeng/thinkphp/library/think/Loader.php on line 63

Fatal error: Uncaught think\exception\ErrorException: Undefined variable: _SERVER in /opt/sifeng/thinkphp/library/think/Loader.php:63 Stack trace: #0 /opt/sifeng/thinkphp/library/think/Loader.php(63): think\Error::appError(8, 'Undefined varia...', '/opt/sifeng/thi...', 63, Array) #1 /opt/sifeng/thinkphp/library/think/App.php(873): think\Loader::getRootPath() #2 /opt/sifeng/thinkphp/library/think/App.php(153): think\App->getAppPath() #3 /opt/sifeng/thinkphp/library/think/App.php(130): think\App->path('') #4 [internal function]: think\App->__construct('') #5 /opt/sifeng/thinkphp/library/think/Container.php(439): ->newInstanceArgs(Array) #6 /opt/sifeng/thinkphp/library/think/Container.php(284): think\Container->invokeClass('think\\App', Array) #7 /opt/sifeng/thinkphp/library/think/Container.php(132): think\Container->make('think\\App', Array, false) #8 /opt/sifeng/thinkphp/library/think/exception/Handle.php(42): think\Container::get('app') #9 /opt/sifeng/thinkphp/library/think/Error.php(51): think\exception\Handle->report(Ob in /opt/sifeng/thinkphp/library/think/Loader.php on line 63