A question about the PHP namespace

When programming a namespace problem, first run the code: {code ...} I tried to dynamically instantiate the class of another namespace through the variable in the getClass method, but the "Classnotfound" error was triggered. I think the $ class variable problem occurs, so I want to test... when programming such a namespace problem, first go to the code:

namespace Test {    class Test {}}namespace Chou {    use Test\Test;    class Mee {        public $class = 'Test';        public function getClass()        {            return new $this->class();        }    }    $tmp = new Mee();    $tmp->getClass();}

I tried to dynamically instantiate the Class of another namespace through the variable in the getClass method, but the "Class not found" error was triggered. I think the $ class variable is a problem, so I simplified the test code:

namespace Chou {    use Test\Test;    $test = 'Test';    $tmp = new $test();}

The error is as expected. I know that it can be solved in a fully qualified way, but I still want to understand what the principle is and hope to solve it.

I neglected myself. I found namespaces and dynamic language features in the manual..

Reply content:

When programming, we encounter such a namespace issue. First, we should go to the code:

namespace Test {    class Test {}}namespace Chou {    use Test\Test;    class Mee {        public $class = 'Test';        public function getClass()        {            return new $this->class();        }    }    $tmp = new Mee();    $tmp->getClass();}

I tried to dynamically instantiate the Class of another namespace through the variable in the getClass method, but the "Class not found" error was triggered. I think the $ class variable is a problem, so I simplified the test code:

namespace Chou {    use Test\Test;    $test = 'Test';    $tmp = new $test();}

The error is as expected. I know that it can be solved in a fully qualified way, but I still want to understand what the principle is and hope to solve it.

I neglected myself. I found namespaces and dynamic language features in the manual..

The manual is written, and namespace is used in variables.Must use a fully qualified name.

Http://php.net/manual/zh/language.nam...