register function implemented

register.php

@@ -7,13 +7,19 @@
  */
 
     require_once('includes.inc.php');
+    define('PATTERN', '^[a-zA-Z0-9 ]{6,20}$');
 
+    $data = null;
+    $error = 0;
     $name = $_GET['name'];
-    $id = md5(uniqid(rand(), true));
+    $uid = md5(uniqid(rand(), true));
     $database = new Database();
-    $database->query('INSERT INTO "Users" ("name", "ID") VALUES  ($1, $2);', array($name, $id)); //TODO unique string
-
-    //echo json_encode(array('id'=>$id, 'name'=>$name));
-    echo "Hello World";
+    $database->query('INSERT INTO "Users" ("name", "ID") VALUES  ($1, $2);', array($name, $uid)); //TODO unique string
+    if(preg_match(PATTERN, $name) != 1) {
+        $error = 11101;
+    } else {
+        $data = json_encode(array('uid'=>$id, 'name'=>$name));
+    }
+    $database->create_response($data, $error);
 
 ?>