SWDB/application/entity/K_Fusion.php

<?php

    require_once($path["entity"] . "Entity.php");
    //require_once($path["entity"] . "Monster.php");


    /**
     * Monster.
     *
     * Represents an object from the table 'monster'.
     */
    class Fusion extends Entity{

        /**
         * {@see Monster} to fuse.
         */
        public $target;

        /**
         * {@see Monster} material.
         */
        public $source = [];

        /**
         * Stars of the monster to fuse.
         */
        public $target_stars;

        /**
         * Stars of the source monsters.
         */
        public $source_stars;

        /**
         * Monster materials level.
         */
        public $source_level;

        /**
         * Constructor.
         *
         * Searches the database and retrieves the information about the
         * project, populating it and it's items.
         *
         * @param SQLite3 $db Connection to the database.
         * @param int $id Target monster id.
         */
        public function __construct($db, $id){
            global $path;
            parent::__construct($db);
            $s =
              "SELECT " .
              "  target, " .
              "  target_stars, " .
              "  source, " .
              "  source_stars, " .
              "  source_level " .
              "FROM fusion " .
              "WHERE target = $id; ";
            $q = $this->db->query($s);
            $set = false;
            while ($r = $q->fetchArray(SQLITE3_ASSOC)){
                if ($set == false){
                    $this->target_stars = $r["target_stars"];
                    $this->source_stars = $r["source_stars"];
                    $this->source_level = $r["source_level"];
                    $this->target = new Monster($this->db, $r["target"]);
                    $set = true;
                }
                array_push($this->source, new Monster($this->db, $r["source"]));
            }
        }
    }
?>