Protecting protected and/or private value from Symfony VarDumper - php

Question

I'm trying to hide all the class variable from Symfony's dumper dd,
App\Namespace\Class1 {#NNN ▼
-requestCollection: []
-requestDumpOptions: []
-responseCacheTime: -1
-responseCode: -1
-responseData: ""
-responseRawData: ""
}
I was tried to use class magic method __debugInfo but it append the dump object instead of replacing it
Code :
...
public function __debugInfo()
{
return ['copyright' => 'SOME COPYRIGHT'];
}
...
Result :
App\Namespace\Class1 {#NNN ▼
-requestCollection: []
-requestDumpOptions: []
-responseCacheTime: -1
-responseCode: -1
-responseData: ""
-responseRawData: ""
copyright: "SOME COPYRIGHT"
}
My goal is to only show copyrigth field in the dump
App\Namespace\Class1 {#NNN ▼
copyright: "SOME COPYRIGHT"
}
Using dump again on __debugInfo works but it return Array instance instead of App\Namespace\Class1
...
public function __debugInfo()
{
dd(['copyright' => 'SOME COPYRIGHT']);
}
...

Answer 1

I found your question interesting & tried a way out, if I am correct you don't want to allow dd() to access you private & protected properties.
For that I have created a custom function in my app/helpers.php,
I named it mydd(), this is how it looks,
if (! function_exists('mydd') ){
function mydd($obj=null, ...$args){
foreach($args as $arg){
if(isset($obj) && is_object($obj)){
$reflect = new ReflectionObject($obj);
if(in_array($reflect->getProperty($arg), $reflect->getProperties(ReflectionProperty::IS_PRIVATE | ReflectionProperty::IS_PROTECTED))){
throw new RuntimeException("Cannot access private or protected properties");
}
}
\Symfony\Component\VarDumper\VarDumper::dump($arg);
}
die(1);
}
}
It will do your work, but there are certain changes from dd(), you need to pass the object along with the property, if not then pass null as first argument to the function mydd(), because I guess there is nothing that can find object instance of a class from its property.
I have used Reflection Class Object for that. So basically it will check if the given property of the same object passed as first argument is either private or protected & throw runtime exception.
My Testing
Created a class called DDRepository,
<?php
namespace App\Repository;
class DDRepository{
private $foo = 'foo';
public $bar = 'bar';
private $shoo = 'shoo';
protected $too = 'too';
public function __construct(){
}
public function getFoo(){
mydd($this,$this->too);
}
}
Then called it from web.php
Route::get('checkdd', function(){
$ddrepo = new \App\Repository\DDRepository;
$ddrepo->getFoo();
});
throws Exception as shown in pic,

Answer 2

I have understood your concern. First of all, let me discuss about the variable scope private. private variable is private in the current class. If you use the class in another class private variable will not work. So, you have to use another class to protect your private variable.
<?php
class ParentClass
{
private $yourPrivateVariable = "yourPrivateVariable";
}
class Class1 extends ParentClass
{
private $username = "api";
public function doSomething(){
// write code using private variable
}
}
class NewClass
{
public function doSomething()
{
$test = new Class1();
$test -> doSomething();
return $this->public = "Joe";
}
}
$test = new NewClass();
$test->doSomething();
var_dump($test);
//output
//object(NewClass)#1 (1) {
// ["public"]=>
// string(3) "Joe"
//}
?>
now you can see that non of private variables are showing in result.