* subject for * * @var string|null * @see get_type() */ var $type; /** * Constructor, used to input the data * * @param string|null $term * @param string|null $scheme * @param string|null $label * @param string|null $type */ public function __construct($term = null, $scheme = null, $label = null, $type = null) { $this->term = $term; $this->scheme = $scheme; $this->label = $label; $this->type = $type; } /** * String-ified version * * @return string */ public function __toString() { // There is no $this->data here return md5(serialize($this)); } /** * Get the category identifier * * @return string|null */ public function get_term() { return $this->term; } /** * Get the categorization scheme identifier * * @return string|null */ public function get_scheme() { return $this->scheme; } /** * Get the human readable label * * @param bool $strict * @return string|null */ public function get_label($strict = false) { if ($this->label === null && $strict !== true) { return $this->get_term(); } return $this->label; } /** * Get the category type * * @return string|null */ public function get_type() { return $this->type; } }