Closure-Guidance: php closures implement array formatting

I originally meant the following code {code ...} using closures {code ...} problem 1: php's closed-pack closure does not support returning parameter questions. 2. After using the use method, you still cannot format $ v, only the element use method {code...} can be deleted ...} I originally meant the following code:

                $eData=array(                'section'=>$v['section'],                'page'=>$v['page'],                //'status'=>$v['status'],                'type'=>$v['type'],            );                    unset($v['page']);                    //unset($v['status']);                    unset($v['id']);                    unset($v['type']);                    unset($v['section']);            $eData['data']=serialize($v);

Using closures

                $eData=array(                'section'=>$v['section'],                'page'=>$v['page'],                //'status'=>$v['status'],                'type'=>$v['type'],                'data'=>function(){                    unset($v['page']);                    //unset($v['status']);                    unset($v['id']);                    unset($v['type']);                    unset($v['section']);            return serialize($v);                    }            );

Problem 1: php's closed-pack closure does not support response parameters
Problem 2: After the use method is used, you cannot format $ v. You can only delete the elements.
Use Method

$eData=array( 'section'=>$v['section'],   'page'=>$v['page'], //'status'=>$v['status'], 'type'=>$v['type'], 'data'=>function() use($v){ unset($v['page']); //unset($v['status']); unset($v['id']); unset($v['type']); unset($v['section']);                                          return $v=serialize($v);}, );

Reply content:

I originally meant the following code:

                $eData=array(                'section'=>$v['section'],                'page'=>$v['page'],                //'status'=>$v['status'],                'type'=>$v['type'],            );                    unset($v['page']);                    //unset($v['status']);                    unset($v['id']);                    unset($v['type']);                    unset($v['section']);            $eData['data']=serialize($v);

Using closures

                $eData=array(                'section'=>$v['section'],                'page'=>$v['page'],                //'status'=>$v['status'],                'type'=>$v['type'],                'data'=>function(){                    unset($v['page']);                    //unset($v['status']);                    unset($v['id']);                    unset($v['type']);                    unset($v['section']);            return serialize($v);                    }            );

Problem 1: php's closed-pack closure does not support response parameters
Problem 2: After the use method is used, you cannot format $ v. You can only delete the elements.
Use Method

$eData=array( 'section'=>$v['section'],   'page'=>$v['page'], //'status'=>$v['status'], 'type'=>$v['type'], 'data'=>function() use($v){ unset($v['page']); //unset($v['status']); unset($v['id']); unset($v['type']); unset($v['section']);                                          return $v=serialize($v);}, );

Is this effect required?

$eData = array(    'section' => $v['section'],    'page'    => $v['page'],    'type'    => $v['type'],    'data'    => call_user_func(        function() use (&$v)        {            unset($v['page']);            unset($v['id']);            unset($v['type']);            unset($v['section']);            return serialize($v);        }    ),);

After a rough look, you should want 'data' to be serialize ($ v? That is to say, remove the 'section ', 'page', and 'type' and then serialize the string. 'Data' => function () assigns an anonymous function to data, instead of the return value to data.
The second question is too silly.

'data'=>function() use($v){ unset($v['page']); //unset($v['status']); unset($v['id']); unset($v['type']); unset($v['section']);                                          return $v=serialize($v)

The use syntax is used to re-copy the transfer, not to reference, to convert $ v into a serialized value, it should be a referenceuse(&$v)

What people say on the second floor is right. Why don't they accept it?

In this way, you pass an anonymous function to $ eData ['data'] without returning the function results to it.

I don't know what the closure is like.
Just answer the question according to your understanding.

Write as follows:

class A {    var $eData = Array();    function formatArrayWithHookFn( $hookFn ) {        $hookFn( $this->$eData );    }}$a = new A();$a->formatArrayWithHookFn(function( $arrayToFormat ) {    $arrayToFormat['foo'] = 'bar';    // ...});