[SOLVED] default value for function variable

[maddogandnoriko]

Can someone tell me why this is generating and unexpected tvariable error? this->languages[0] is 'en' and id is set. This function is in a class. I wanted the language to be set to languages[0] if no value was passed. And the function works if I remove:$language=$this->languages[0].

 

Thank you

                maddogandnoriko

 

  function getXML($ID,$language=$this->languages[0]){
	$url= $this->URL .API.'/all/'.$language.'.xml';
	$this->xml = simplexml_load_file($url);
  }

 

[genericnumber1]

  function getXML($ID,$language = null){
      if(is_null($language)) $language = $this->languages[0];

      $url = $this->URL .API.'/all/'.$language.'.xml';
      $this->xml = simplexml_load_file($url);
  }

[maddogandnoriko]

Can you tell me why null works? I know true and false also works...I just assumed my way would work but I was wrong.

 

maddogandnoriko

[genericnumber1]

Default function values can only be literals (non-variables, like a string or a number) or constants.

[maddogandnoriko]

literals...makes sense. Thanks for the info.

 

maddogandnoriko