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<?php
namespace Algorithms\GraphTools;
class Connection
{
private $from;
private $to;
private $distance;
public function __construct($from, $to, $distance)
if (self::isPoint($from) && self::isPoint($to)) {
$this->from = $from;
$this->to = $to;
} else {
throw new ConnectionException('Sent data are not points');
}
$distance = intval($distance);
if ($distance > 0) {
$this->distance = $distance;
throw new ConnectionException('Distance is less than or equal to zero');
private static function isPoint($element)
return ($element instanceof Point) || (filter_var($element, FILTER_VALIDATE_INT) !== false);
public function getFrom()
return $this->from;
public function getTo()
return $this->to;
public function getDistance()
return $this->distance;
PHPAlgorithms /
GraphTools
