$ENV哈希array包含了环境变量，它允许程序员重定义AcceptHTTP头信息。
The $ENV hash array contains the environmental variables, allowing us to interrogate the Accept HTTP header.
$_SERVER序列变量包含了服务器端变量，允许程序员重定义AcceptHTTP头信息。
The $_SERVER array contains the server variables, allowing us to interrogate the Accept HTTP header.
它为每个对C8051架构最为有效的变量指针定义了一组地址空间，无需从程序员那里获得特殊指示。
It defines a set of address Spaces for each pointer variable that is optimally efficient for the C8051 architecture, without any specific direction from the programmer.
它们也倾向于使用动态数据类型，即程序员无需定义他们变量所属的数据类型。
They also tend to be dynamically typed, meaning programmers don't need to specify what type of data their variables will hold.
它们也倾向于使用动态数据类型，即程序员无需定义他们变量所属的数据类型。
They also tend to be dynamically typed, meaning programmers don't need to specify what type of data their variables will hold.
应用推荐