Namespace issues in PHP

A. php has a namespace {code ...} in the factory. php {code ...} why in factory. the createA method in php will tell me that I cannot find fooclassA in factory. php... it should go to. php. It can be used in php.5.5. php), but in step 5 .... a. php has a namespace.

namespace foo;class classA{    public function foo_test(){            echo "this is instance function";        }  }

In factory. php

namespace factory;import('a.php');class classB{    public function createA(){        return \foo\classA::foo_test();    }}

Why in factory. the createA method in php will tell me that I cannot find \ foo \ classA in factory. php... it should go to. php. It can be used in php.5.5. php), but after 5.6, it will find (factory. php)

How can I solve this problem...

Reply content:

A. php has a namespace.

namespace foo;class classA{    public function foo_test(){            echo "this is instance function";        }  }

In factory. php

namespace factory;import('a.php');class classB{    public function createA(){        return \foo\classA::foo_test();    }}

Why in factory. the createA method in php will tell me that I cannot find \ foo \ classA in factory. php... it should go to. php. It can be used in php.5.5. php), but after 5.6, it will find (factory. php)

How can I solve this problem...

PHP supports the following reference methods:

1. Require (file_path );

2. Require_once (file_path _;

3. Include (file_path );

4. Include_once (file_path );

5. Use 'file _ path ';
   Specific differences go to google

Finally, I want to ask, what are you writing ???

Php does not seem to have the import () built-in method...
Just change it according to the @ lanffy brother...