PHP命名空间namespace定义及导入use用法详解_php技巧_

'; } } function Person(){ return 'You must stay here!'; }; namespace Student; class Person{ function __construct(){ echo 'I want to play!
'; } } new Person(); //本空间（Student空间） new \Teacher\Person(); //Teacher空间 new \Student\Person(); //Student空间 echo \Teacher\Person(); //Teacher空间下Person函数 

 I want to play! Please study! I want to play! You must stay here! 

'; } } 

'; } } 

 namespace School\Parents; class Man{ function __construct(){ echo 'Listen to teachers!
'; } } namespace School\Teacher; class Person{ function __construct(){ echo 'Please study!
'; } } namespace School\Student; class Person{ function __construct(){ echo 'I want to play!
'; } } new Person(); //输出I want to play! new \School\Teacher\Person(); //输出Please study! new Teacher\Person(); //报错 ---------- use School\Teacher; new Teacher\Person(); //输出Please study! ---------- use School\Teacher as Tc; new Tc\Person(); //输出Please study! ---------- use \School\Teacher\Person; new Person(); //报错 ---------- use \School\Parent\Man; new Man(); //报错