[RESOLVED] [Global variables] help required

[computerzworld]

Hello friends,
I am having a set of global variables defined in my libraray file. This library file contains one function where all the variables are set.

Here is my function defined in library.

function setErrorData()
{
          global $var1;
          global $var2;
          global $var3;

     if(some condition matches)
     {
              $var1 = "value1";
              $var2 = "value2";
              $var3 = "value3";
     }
     else
     {
              $var1 = "value3";
              $var2 = "value4";
              $var3 = "value5";

     }
}

Now I am calling this library function in my class file which in turn uses this global variables. Now in that class files I have around 10 functions that uses these global variables for setting error data. And I have to explicitly define all these global variables repetitively inside function.

Here is my class along with functions.

class XYZ
{


       function XYZ()
       {
           ....
       }

       function A()
       {
                 global $var1;
                 global $var2;
                 global $var3;

                 .
                 .
                 .
                 .
       }  


       function B()
       {
                 global $var1;
                 global $var2;
                 global $var3;

                 .
                 .
                 .
                 .
       }  

        function C()
        {
                 global $var1;
                 global $var2;
                 global $var3;

                 .
                 .
                 .
                 .
        }  
      .
      .
      .
      .


}

Now, what I want is to avoid declaring these variables all the time in the class functions. Is it possible to do this? If yes then how? Please help me. Thanks in advance.

[laserlight]

Now in that class files I have around 10 functions that uses these global variables for setting error data. And I have to explicitly define all these global variables repetitively inside function.

Lump them together in an array.

[computerzworld]

thanks for the reply laserlight......
but exactly how I can lump declaration of variables in an array?

[laserlight]

but exactly how I can lump declaration of variables in an array?

Do something like this:

function setErrorData()
{
    global $var;
    $var = array();

if(some condition matches)
{
    $var[] = "value1";
    $var[] = "value2";
    $var[] = "value3";
}
else
{
    $var[] = "value3";
    $var[] = "value4";
    $var[] = "value5";
}
}

Alternatively, return the array and then pass it to those functions that need it.

[computerzworld]

yup i did exactly what you said and i got the solution.... 🙂
thanks for your precious help laserlight....

[NogDog]

Rather than messing with the ugliness that is global variables, might it not be better to do something with a class for that error data, perhaps using static variables/methods?

<?php

class ErrorData
{
   public static $var = array();

   public static function setErrorData($condition)
   {
      if($condition == 'something')
      {
         self::$var[] = "value1";
         self::$var[] = "value2";
         self::$var[] = "value3";
      }
      else
      {
         self::$var[] = "value3";
         self::$var[] = "value4";
         self::$var[] = "value5";
      }
   }
}

class Xyz
{
   public function foo()
   {
      ErrorData::$var[] = 'some value';
   }

   public function bar()
   {
      if(!empty(ErrorData::$var))
      {
         foreach(ErrorData::$var as $key => $value)
         {
            // do something interesting with $key and/or $value
         }
      }
   }

   public function setError($condition)
   {
      ErrorData::setErrorData();
   }
}