Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTIO

sss5d

What am I doing wrong?

Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /home/cat/public_html/track/admin/sys/class.cluster.php on line 11

<?php
/**
 * Defines a Cluster.
 * Each cluster is a set of $points (x,y), with a center (x,y) and variance (x,y)
 * @date 27/March/2009 
 */

class Cluster
{
  /** Cluster points */
  public $points;
  /** Cluster center */
  public $avgPoint;
  /** Cluster variance */
  public $variance;

  public function __construct($point) 
  {
    $this->avgPoint = $point;
    // to begin, variance is set to 0
    $vP = new Point(0, 0);
    $this->variance = $vP;
  }

  /** Sets the cluster center */
  public function calculateAverage($maxX, $maxY)
  {
    // $maxX, $maxY are used in case of not having cluster points
    $count = count($this->points);

if ($count == 0) {
  // just randomize
  $this->avgPoint->x = rand(0, $maxX);
  $this->avgPoint->y = rand(0, $maxY);
  return;
}

foreach ($this->points as $p) {
  $xsum += $p->x;
  $ysum += $p->y;
}

$this->avgPoint->x = $xsum / $count;
$this->avgPoint->y = $ysum / $count;
  }

  /** Sets the cluster variance */
  public function calculateVariance()
  {
    $count = count($this->points);

if ($count == 0) {
    $this->variance->x = 0;
    $this->variance->y = 0;
    return;
}

foreach($this->points as $p) {
  $xdiff = $p->x - $this->avgPoint->x;
  $ydiff = $p->y - $this->avgPoint->y;
  $xsum2 += $xdiff * $xdiff; 
  $ysum2 += $ydiff * $ydiff;
}

$this->variance->x = $xsum2 / $count;
$this->variance->y = $ysum2 / $count;
  }
}
?>

NogDog

At a guess: you're using an obsolete version of PHP, i.e. something prior to PHP5.0.

PS: Assuming that's the case, by far the best fix is to upgrade (or move) to a current, supported PHP5.x version. If that is not feasible at this time, then the class variable declarations will need to be changed to var $variable_name; with no access keyword ('public', 'protected', or 'private'), and likewise any class function declarations will need to have any access keyword removed. (And there's still no guarantee at this point that the code might not me using newer functions which are not supported under PHP4.)

FYI: PHP4 has not been supported at all for quite some time now, including security fixes, so its really to your best interest in many ways to get on board with the latest/greatest PHP, though of course this may require some updating of any legacy PHP4 code you're using.