我通过命令行运行PHP，如下所示：
C:'PHP'5.6.4'php.exe -S localhost:8080 -t "C:'path'to'dir"
在此之前创建了一个环境变量，APPLICATION_ENV .尝试在PowerShell中看到它给了我：
PS C:'Users'Eyas> $env:APPLICATION_ENV
development
然而，当我通过print_r查看$_ENV和$_SERVER时，我得到的只是：
# $_ENV
Array
(
[ALLUSERSPROFILE] => [...]
[APPDATA] => [...]
...
[COMPUTERNAME] => [...]
[ComSpec] => C:'WINDOWS'system32'cmd.exe
...
[HOME] => [...]
[HOMEDRIVE] => [...]
[HOMEPATH] => [...]
[LOCALAPPDATA] => [...]
...
[Path] => [...]
...
[ProgramData] => C:'ProgramData
[ProgramFiles] => C:'Program Files (x86)
[ProgramFiles(x86)] => C:'Program Files (x86)
[ProgramW6432] => C:'Program Files
[PSModulePath] => C:'WINDOWS'system32'WindowsPowerShell'v1.0'Modules'
[PUBLIC] => C:'Users'Public
[SESSIONNAME] => Console
[SystemDrive] => C:
[SystemRoot] => C:'WINDOWS
[TEMP] => [...]
[TMP] => [...]
[USERDOMAIN] => [...]
[USERDOMAIN_ROAMINGPROFILE] => [...]
[USERNAME] => [...]
[USERPROFILE] => [...]
[VS110COMNTOOLS] => C:'Program Files (x86)'Microsoft Visual Studio 11.0'Common7'Tools'
[VS120COMNTOOLS] => C:'Program Files (x86)'Microsoft Visual Studio 12.0'Common7'Tools'
[windir] => C:'WINDOWS
[__COMPAT_LAYER] => DetectorsWin7
)
# $_SERVER
Array
(
[DOCUMENT_ROOT] => [...]
[REMOTE_ADDR] => ::1
[REMOTE_PORT] => 44786
[SERVER_SOFTWARE] => PHP 5.6.4 Development Server
[SERVER_PROTOCOL] => HTTP/1.1
[SERVER_NAME] => localhost
[SERVER_PORT] => 8080
[REQUEST_URI] => [...]
[REQUEST_METHOD] => GET
[SCRIPT_NAME] => [...]
[SCRIPT_FILENAME] => [...]
[PHP_SELF] => [...]
[HTTP_HOST] => localhost:8080
[HTTP_CONNECTION] => keep-alive
[HTTP_CACHE_CONTROL] => max-age=0
[HTTP_ACCEPT] => text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
[HTTP_USER_AGENT] => Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.95 Safari/537.36
[HTTP_ACCEPT_ENCODING] => gzip, deflate, sdch
[HTTP_ACCEPT_LANGUAGE] => en-US,en;q=0.8,ar;q=0.6,de;q=0.4
[HTTP_COOKIE] => _ga=GA1.1.750333862.1419043051
[REQUEST_TIME_FLOAT] => 1421118347.0132
[REQUEST_TIME] => 1421118347
[argv] => Array
(
)
[argc] => 0
)
此外，getenv("APPLICATION_ENV")返回一个空结果。
问题可能是什么？
看起来我正在重新启动php.exe并从更改环境变量后尚未重新启动的进程重新启动它。因此，在启动进程时，php.exe获取其父（生成）进程的环境，并且没有重新加载环境变量。
就我而言，我使用的是 PhpStorm，重新启动它允许我看到我的新环境变量。