Problems caused by PHP namespace

  
   a . PHP_EOL;    }}class test2 {    public function hello(){        $obj = new test1;        //var_dump(get_class($obj)); //always abc\test1        $obj->hello();    }}namespace def;class test1 extends \abc\test1 {    public $a = ' bbb';}class test2 extends \abc\test2 {}(new test2)->hello();

For advice
How to call Def\test1 instead of abc\test1 in Def\test2 without altering the code of the ABC namespace

Reply content:

  
   a . PHP_EOL;    }}class test2 {    public function hello(){        $obj = new test1;        //var_dump(get_class($obj)); //always abc\test1        $obj->hello();    }}namespace def;class test1 extends \abc\test1 {    public $a = ' bbb';}class test2 extends \abc\test2 {}(new test2)->hello();

For advice
How to call Def\test1 instead of abc\test1 in Def\test2 without altering the code of the ABC namespace

The following paragraph changes this:

namespace def;class test1 extends \abc\test1 {    public $a = ' bbb';}class test2 extends test1 {}$a= new \def\test2();print_r($a->hello());

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