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<?php |
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namespace Algorithms\GraphTools; |
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class Point |
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{ |
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protected $id, |
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$x, |
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$y, |
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$label = null; |
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public function __construct($id, $label = null) |
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{ |
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if (!(filter_var($id, FILTER_VALIDATE_INT) || is_numeric($value))) { |
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throw new PointException('ID is must be a number'); |
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} |
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$this->id = $id; |
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$this->label = $label; |
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} |
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public static function create($id, $label = null) |
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{ |
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return new self($id, $label); |
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} |
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public static function check($point) |
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{ |
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return ($point instanceof self); |
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} |
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public static function checkOrFail($point) |
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{ |
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if (!Point::check($point)) { |
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throw new PointException('Sent object is not a Point'); |
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} |
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return true; |
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} |
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public function __get($name) |
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{ |
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return $this->{$name}; |
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} |
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public function __set($name, $value) |
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{ |
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if (in_array($name, array('x', 'y'))) { |
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if (!(filter_var($value, FILTER_VALIDATE_INT) || is_numeric($value))) { |
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throw new PointException("Parameter {$value} must be a number"); |
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} |
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$this->{$name} = $value; |
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} elseif ($name == 'id') { |
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throw new PointException('You can\'t change point ID'); |
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} else { |
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$this->{$name} = $value; |
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} |
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} |
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public function toArray() |
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{ |
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$point = array( |
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'id' => $this->id, |
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); |
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foreach (array('label', 'x', 'y') as $name) { |
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if (!is_null($this->{$name})) { |
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$point[$name] = $this->{$name}; |
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} |
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} |
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return $point; |
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} |
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public function addConnection(Point $point, $distance) |
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{ |
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return new ConnectionsContainer( |
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array( |
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new Connection($this, $point, $distance), |
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) |
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); |
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} |
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} |
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PHPAlgorithms /
GraphTools
Loading history...
Only declaring a single property per statement allows you to later on add doc comments more easily.
It is also recommended by PSR2, so it is a common style that many people expect.