Use static variable in static function

Question

How do I reference a static variable from within a static function in the same class?

I am trying:

class SQL {

public static $partsNetTotalPounds = '...';

public static function margin()
  {
    return '('.$this->partsNetTotalPounds...
  }
}

Ofcourse this does not work because I haven't instantiated the object SQL.

How can this be done?

two ways either SQL::$partsNetTotalPounds or self::$partsNetTotalPounds — Robert
– Robert, Commented Jul 5, 2013 at 8:01

sybear · Accepted Answer · 2013-07-05 07:20:24Z

3

public static function margin()
  {
    return "(" . self::$partsNetTotalPounds ;
  }

answered Jul 5, 2013 at 7:20

sybear

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1 Comment

imperium2335 Over a year ago

Thanks! I had forgotten about that keyword.

DevZer0 · Accepted Answer · 2013-07-05 07:20:04Z

0

you need to use self keyword

self::$partsNetTotalPounds

answered Jul 5, 2013 at 7:20

DevZer0

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Comments

Adi H · Accepted Answer · 2013-07-05 07:36:33Z

0

Like the other people have pointed out use the self keyword: self::$partsNetTotalPounds.

If the value of the $partsNetTotalPounds is all you need you don't need to access it through the margin method, by the way. Instead you can access it via SQL::$partsNetTotalPounds.

$this is used to access properties of an instance so it does not apply in this case.

answered Jul 5, 2013 at 7:36

Adi H

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