[RESOLVED] variables in classes

[cupboy]

How might I access the variable $dummy in the function? None of the 3 ways I tried works.

<?php
require_once 'clsLogging.php';
// the variable $dumb is just blank, it needs to have a value of -1
print "TEST <br />";
$dumb = clsGetImportNames::GetNames();
print "dumb is $dumb<br />";

class clsGetImportNames {
  var $dummy = -1;  

  function GetNames() {
    $xdummy = $GLOBALS[dummy];
    clsLogging::Writelog("variables","======== ".$GLOBALS[$dummy]." ========");
    clsLogging::Writelog("variables","======== ".$GLOBALS[dummy]." ========");
    clsLogging::Writelog("variables","======== ".$dummy." ========");
    return $xdummy;
  } // end function
} // end class
?>

[bradgrafelman]

Take a look at the [man]oop5.basic[/man] manual page; it shows you the basics about OOP syntax in PHP.

[NogDog]

Hint: $this

[cupboy]

NogDog;10987606 wrote:

Hint: $this

I've tried that. Doesn't work either.

<?php
require_once 'clsLogging.php';
// the variable $dumb is just blank, it needs to have a value of -1
print "TEST <br />";
$dumb = clsGetImportNames::GetNames();
print "dumb is $dumb<br />";

class clsGetImportNames {
  public $dummy = -1;  

  function GetNames() {
    //$xdummy = $GLOBALS[dummy];
    $xdummy = $this->dummy;
    //clsLogging::Writelog("variables","======== ".$GLOBALS[$dummy]." ========");
    //clsLogging::Writelog("variables","======== ".$GLOBALS[dummy]." ========");
    //clsLogging::Writelog("variables","======== ".$dummy." ========");
    return $xdummy;
  } // end function
} // end class

?>

[Derokorian]

You are calling the function statically http://us2.php.net/manual/en/language.oop5.static.php but you aren't trying to access dummy statically, and it also isn't defined statically. See the code below for a working version of calling it statically.

<?php
print "TEST <br />";
$dumb = clsGetImportNames::GetNames();
print "dumb is $dumb<br />";

class clsGetImportNames {
  public static $dummy = -1;  

  public static function GetNames() {
    $xdummy = self::$dummy;
    return $xdummy;
  } // end function
} // end class

?>

[cupboy]

Excellent! Thank you #5.

[NogDog]

The question is, do you really want it to be a static variable? (If it's static, then if you change its value in any instance of that class, you'll be changing it in all instances.) If not, then you would not declare it as static, and use the $this object withing the class's methods:

class Foo
{
   private $bar = 0;
   public getBar()
   {
      return $this->bar;
   }
   public setBar($val)
   {
      $this->bar = $val;
   }
}
$foo = new Foo();
$foo->setBar(5);
echo $foo->getBar();