www.php.net-->预定义变量-->看第一条评论,如是说:
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I found something you should know in the settings file (php.ini) :; The environment variables are not hashed into the $_ENV. To access
; environment variables, you can use getenv() instead.so... don't be surprised if you print_r($_ENV) and you get NOTHING!!
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I found something you should know in the settings file (php.ini) :; The environment variables are not hashed into the $_ENV. To access
; environment variables, you can use getenv() instead.so... don't be surprised if you print_r($_ENV) and you get NOTHING!!
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