java软件工程师学php -15 php中的namespace 与java中的package

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Release: 2016-06-13 13:11:54
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java程序员学php -15 php中的namespace 与java中的package
php中的namespace跟java中的pakcage一样,都可以解决命名冲突的问题。
比如:
    声明:namespace APP\KENT\CHEN;
    使用:require('xxx.php');
         echo \APP\KENT\CHEN\SOME_CONST;


不同点在于:
  1.写法不一样(废话)
  2.文件的namespace不需要与其实际路径一致
  3.namespace下面不仅可以有类,还可以有常量、函数等其它任何php的东西

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