Classe connection + classe group

Project/php/config/Connection.php

@@ -0,0 +1,34 @@
+<?php
+namespace config;
+class Connection extends PDO { 
+
+private $stmt;
+
+public function __construct(string $dsn, string $username, string $password) { 
+
+	parent::__construct($dsn,$username,$password);
+	$this->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
+	}
+ 
+
+/** * @param string $query 
+       * @param array $parameters * 
+       * @return bool Returns `true` on success, `false` otherwise 
+*/ 
+
+	public function executeQuery(string $query, array $parameters = []) : bool{
+		$this->stmt = parent::prepare($query);
+		foreach ($parameters as $name => $value) {
+		 $this->stmt->bindValue($name, $value[0], $value[1]);
+	}
+
+	return $this->stmt->execute(); 
+}
+
+	public function getResults() : array {
+	 return $this->stmt->fetchall();
+
+	}
+}
+
+?>

Project/php/model/Group.php

@@ -0,0 +1,68 @@
+<?php
+namespace model;
+
+use function Sodium\add;
+
+class Group
+{
+    private int $id;
+    private int $num;
+    private int $year;
+    private string $sector;
+    private array $students;
+    private array $vocabs;
+
+    /**
+     * @param int $id
+     * @param int $num
+     * @param int $year
+     * @param string $sector
+     */
+    public function __construct(int $id, int $num, int $year, string $sector, array $students, array $vocab)
+    {
+        $this->id = $id;
+        $this->num = $num;
+        $this->year = $year;
+        $this->sector = $sector;
+    }
+
+    /**
+     * @return int
+     */
+    public function getId(): int
+    {
+        return $this->id;
+    }
+
+    /**
+     * @return int
+     */
+    public function getNum(): int
+    {
+        return $this->num;
+    }
+
+    /**
+     * @return int
+     */
+    public function getYear(): int
+    {
+        return $this->year;
+    }
+
+    /**
+     * @return string
+     */
+    public function getSector(): string
+    {
+        return $this->sector;
+    }
+
+    public function addUser(Users $user){
+        $this->students.add($user);
+    }
+
+    public function removeUser(Users $user){
+        $this->students . remove($user);
+    }
+}