清单3显示了使用php名称空间定义本地和全局字符串常量的一个例子。
Listing 3 shows an example of using PHP namespaces to define local and global string constants.
这就是为什么看到本地定义的字符串首先显示。
This is why you see the locally defined string appearing first.
另外，当您定义TOPIC对象时，它们被映射到表2中显示的主题字符串。
Furthermore, when you defined the topic objects, they were mapped to the topic strings shown above in Table 2.
应用推荐