Closure::bind Usage in PHP (manual recording)

Manual closure::bind- Copy a closure that binds the specified $this object and class scope.

Specific parameters can be seen in the manual, here to record the practical use of this method.

1<?PHP2 3 Trait metatrait4 {5     Private $methods= [];6 7      Public functionAddmethod ($methodName,$methodCallable)8     {9         if(!is_callable($methodCallable))Ten             Throw NewInvalidArgumentException (' Second param must be callable '); One  A         //changing the scope to Get_called_class object -         $this->methods[$methodName] = Closure::bind ($methodCallable,$this,Get_called_class ()); -  the     } -  -      Public function__call ($methodName,Array $args) -     { +         if(isset($this->methods[$methodName])){ -             return Call_user_func_array($this->methods[$methodName],$args); +         } A  at         Throw NewRuntimeException (' There is-no method with the given name-to-call '); -  -     } -  - } -  in classHackthursday - { to      Usemetatrait; +  -     Private $dayOfWeek= ' Thursday '; the } *  $ Panax Notoginseng $test=NewHackthursday (); - $test->addmethod (' When ',function(){ the     return $this-DayOfWeek; + }); A  the Echo $test->when ();//Thursday

In fact, this method is a static version of Closure::bindto () that was previously said, and the problem with PHP when using reflection, as well as a solution to this article to see a deeper understanding.

Closure::bind Usage in PHP (manual recording)