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Error while accessing global variable to static function


Error while accessing global variable to static function

By : user2952111
Date : November 19 2020, 12:41 AM
Hope that helps variable a is not static that's why you cannot access it from static method testMe().Change
code :
String a = "abc"; 
static String a = "abc"; 


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Accessing a global static variable from another class

Accessing a global static variable from another class


By : user2915777
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further You can decide on a master version of the container in one .cpp file, and have a function return a reference or pointer to that. Then don't bother with the other copies.
Wrapper.h
code :
 anArray<someObject>& Objects();
#include "someHeader.h"

anArray<someObject>& Objects()
{ return SomeNameSpace::variable; }
Accessing a variable from an other class without the use of static or global

Accessing a variable from an other class without the use of static or global


By : Wedotanks.com LLC
Date : March 29 2020, 07:55 AM
I wish did fix the issue. All you really need to do is give both instances a reference to the same arrays, or give Perso a reference to Jeau. Static variables are a really bad idea, even if there's nothing inherent to this situation that would keep them from working for you.
Here's what a solution that uses Dependency Injection would look like:
code :
package model {
   public class Jeau extends EventDispatcher {

      protected var _tMap1:Array = new Array();
      protected var _tMap2:Array = new Array();
      protected var _tMap3:Array = new Array();
      //consider using more descriptive variable names
      //or an array of arrays (one map in each index)
      public function get tMap1():Array {
         return _tMap1;
      }
      public function set tMap1(value:Array):void {
         if (value != _tMap1) {
            _tMap1 = value;
            dispatchEvent(new Event('tMap1Changed'));
         }
      }
      public function get tMap2():Array {
         return _tMap2;
      }
      public function set tMap2(value:Array):void {
         if (value != _tMap2) {
            _tMap2 = value;
            dispatchEvent(new Event('tMap2Changed'));
         }
      }
      public function get tMap3():Array {
         return _tMap3;
      }
      public function set tMap3(value:Array):void {
         if (value != _tMap3) {
            _tMap3 = value;
            dispatchEvent(new Event('tMap3Changed'));
         }
      }
      protected function somethingThatChangesMap1(index:int, value:String):void {
         _tMap1[index] = value;
         dispatchEvent(new Event('tMap1Changed'));
      }
   }
}
package view {
   class Perso extends MovieClip {
       protected var jeau:Jeau;
       public function get jeau():Jeau {
          return _jeau;
       }
       public function set jeau(value:Jeau):void {
          if (value != _jeau) {
             _jeau = value;
             _jeau.addEventListener('map1Changed', doMap1Stuff);
             _jeau.addEventListener('map2Changed', doMap2Stuff);
             _jeau.addEventListener('map3Changed', doMap3Stuff);
             doMap1Stuff();
             doMap2Stuff();
             doMap3Stuff();
          }
       }
       protected function doMap1Stuff(e:Event=null) {
          //do actions depending on the state of map1 here
       }
       protected function doMap2Stuff(e:Event=null) {
          //do actions depending on the state of map2 here
       }
       protected function doMap3Stuff(e:Event=null) {
          //do actions depending on the state of map3 here
       }

   }
}
package control {
   public class MainGame {
      protected var jeau:Jeau;
      protected function perso:Perso;
      public function MainGame() {
         jeau = new Jeau();
         //jeau setup
         perso = new Perso();
         perso.jeau = jeau;
      }
   }

}
Accessing to global variable from PHP static class

Accessing to global variable from PHP static class


By : Jazmine Maire Kozlow
Date : March 29 2020, 07:55 AM
this will help $Database is out of scope inside your class and function. Consider changing your code to something more like this(below). You send in the PDO object to the function so it has access to it.
code :
<?php
$Database = new PDO(.....);
class MyModel{
    public static function getSomething(PDO $pdo){
       $test = $pdo->somePDOStuff(..);
       ...
    }
}
echo MyModel::getSomething($Database);
?>
<?php
    $Database = new PDO(.....);
    class MyModel{
        public static $pdo;
        public static function getSomething(){
           $test = self::$pdo->somePDOStuff(..);
           ...
        }
    }
    MyModel::$pdo = $Database;
    echo MyModel::getSomething();
?>
<?php
    class MyModel{
        private $pdo;
        public function __construct() {
            $this->setPdo(new PDO(.....));
        }
        public static function getSomething(){
           $instance = new self();
           $test = $instance->getPdo()->somePDOStuff(..);
           ...
        }
        public function setPdo(PDO $pdo) {
            $this->pdo = $pdo;
        }
        public function getPdo() {
            return $this->pdo;
        }
    }
    echo MyModel::getSomething();
?>
Accessing global static variable

Accessing global static variable


By : Charlotte Madrid
Date : March 29 2020, 07:55 AM
With these it helps If it is static, you cannot access it outside that file. What you probably need is a regular variable and an extern declaration. Observe:
File A:
Is accessing the static value using a global pointer variable is valid?

Is accessing the static value using a global pointer variable is valid?


By : Tiến Trần Hữu
Date : March 29 2020, 07:55 AM
it should still fix some issue You're confusing the linkage of a pointer variable and the linkage of what it points to.
The linkage of a pointer does not change, regardless of what it points to.
code :
int *ptr2 = &c;
int **ptr3 = &ptr;
int c = 20;
static int ptr = &c;
#include <stdio.h>

static int c = 20; // Static vairble
int *ptr;

int main(){
    ptr = &c;
    return 0;
}
#include <stdio.h>

static int c = 20; // Static vairble

int main(){
    int *ptr = &c;
    return 0;
}
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