simple class method not working

Question

this is a super basic question but my classes are not working the way I expect them to. I am a CS student in my second year so go easy on me! The only other language I know is Java. Here is my class, called class.Team.php (represents a team).

<?php
class Team
{
  private $teamId='';
  private $teamName='Tyler';
  private $teamCity='';
  private $homeField='';
  private $headCoach='';
  private $mascot='';
  private $wins=0;
  private $losses=0;
  private $roster;

  function display(){
    return $teamName;
  }
}
?>

So when I call the display() method it should return a string (hardcoded as "tyler). Here is my test script. It is simply displaying nothing. A blank white page. Am I missing something??

<?php
include ('class.Team.php');
$um = new Team;
$string = $um->display();
print ($string);
?>

THANKS!

Also it is $this->teamName. Also the manual: php.net/manual/en/language.oop5.basic.php — PeeHaa
– PeeHaa, Commented Nov 21, 2012 at 20:48
no tags in subject: meta.stackexchange.com/questions/19190/… — Marcin Orlowski
– Marcin Orlowski, Commented Nov 21, 2012 at 20:49
btw: class functions are called 'methods', while class variables are called 'members' — Marcin Orlowski
– Marcin Orlowski, Commented Nov 21, 2012 at 20:51

Jared · Accepted Answer · 2012-11-21 20:49:00Z

5

You need to use the $this keyword.

function display(){
    return $this->teamName;
}

answered Nov 21, 2012 at 20:49

Jared

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Marcin Orlowski · Accepted Answer · 2012-11-21 20:50:09Z

1

It's not Java. You have to use $this to reference own instance.

return $this->teamName;

answered Nov 21, 2012 at 20:50

Marcin Orlowski

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