IP地址、主机名等配置变量。
Configuration variables such as IP address, hostname, and more.
在调试PHP应用程序时,应当知道两个配置变量。
There are a couple configuration variables you should know about when debugging your PHP applications. Here they are with their default values.
传统上,配置变量存储在一个(或多个)配置文件中。
Traditionally, configuration variables are stored in one (or more) configuration files.
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