diff --git a/website/public/API/adminChangeUser.php b/website/public/API/adminChangeUser.php
index 6ec50c9..49c7f61 100644
--- a/website/public/API/adminChangeUser.php
+++ b/website/public/API/adminChangeUser.php
@@ -3,23 +3,29 @@ session_start();
 
 require_once ("../../queries/connect.php");
 require_once ("../../queries/checkInput.php");
-require_once ("../../queries/user.php");
 require_once ("../../queries/group_page.php");
+require_once ("../../queries/user.php");
 
-$userinfo = getRoleByID($_SESSION['userID']);
+if (isset($_SESSION["userID"]) &&
+    (getRoleByID($_SESSION["userID"]) == 'admin' ||
+     getRoleByID($_SESSION["userID"]) == 'owner')) {
+    $userinfo = getRoleByID($_SESSION['userID']);
 
-if (isset($_POST["actions"]) && isset($_POST["userID"])) {
-    changeUserStatusByID($_POST["userID"], $_POST["actions"]);
-} else if (isset($_POST["actions"]) && isset($_POST["groupID"])) {
-    changeGroupStatusByID($_POST["groupID"], $_POST["actions"]);
-} else if (isset($_POST["batchactions"]) && isset($_POST["checkbox-user"])) {
-    if ($userinfo == 'owner') {
-        changeMultipleUserStatusByID($_POST["checkbox-user"], $_POST["batchactions"]);
-    } else {
-        changeMultipleUserStatusByIDAdmin($_POST["checkbox-user"], $_POST["batchactions"]);
+    if (isset($_POST["actions"]) && isset($_POST["userID"])) {
+        changeUserStatusByID($_POST["userID"], $_POST["actions"]);
+    } else if (isset($_POST["actions"]) && isset($_POST["groupID"])) {
+        changeGroupStatusByID($_POST["groupID"], $_POST["actions"]);
+    } else if (isset($_POST["batchactions"]) && isset($_POST["checkbox-user"])) {
+        if ($userinfo == 'owner') {
+            changeMultipleUserStatusByID($_POST["checkbox-user"], $_POST["batchactions"]);
+        } else {
+            changeMultipleUserStatusByIDAdmin($_POST["checkbox-user"], $_POST["batchactions"]);
+        }
+    } else if (isset($_POST["groupbatchactions"]) && isset($_POST["checkbox-group"])) {
+        changeMultipleGroupStatusByID($_POST["checkbox-group"], $_POST["groupbatchactions"]);
+    } else if (isset($_POST['bancommentuserID']) && isset($_POST['bancommenttext'])) {
+        editBanCommentByID($_POST['bancommentuserID'], $_POST['bancommenttext']);
     }
-} else if (isset($_POST["groupbatchactions"]) && isset($_POST["checkbox-group"])) {
-    changeMultipleGroupStatusByID($_POST["checkbox-group"], $_POST["groupbatchactions"]);
-} else if (isset($_POST['bancommentuserID']) && isset($_POST['bancommenttext'])) {
-    editBanCommentByID($_POST['bancommentuserID'], $_POST['bancommenttext']);
-}
+} else {
+    header('HTTP/1.0 403 Forbidden');
+}
\ No newline at end of file
diff --git a/website/public/API/adminPageNumber.php b/website/public/API/adminPageNumber.php
index c829249..b8af270 100644
--- a/website/public/API/adminPageNumber.php
+++ b/website/public/API/adminPageNumber.php
@@ -7,32 +7,38 @@ require_once ("../../queries/checkInput.php");
 require_once ("../../queries/user.php");
 require_once ("../../queries/group_page.php");
 
-$search = "";
-if (isset($_POST["search"])) {
-    $search = test_input($_POST["search"]);
-}
+if (isset($_SESSION["userID"]) &&
+    (getRoleByID($_SESSION["userID"]) == 'admin' ||
+     getRoleByID($_SESSION["userID"]) == 'owner')) {
+    $search = "";
+    if (isset($_POST["search"])) {
+        $search = test_input($_POST["search"]);
+    }
 
-$pagetype = "user";
-if (isset($_POST['pagetype'])) {
-    $pagetype = test_input($_POST['pagetype']);
-}
+    $pagetype = "user";
+    if (isset($_POST['pagetype'])) {
+        $pagetype = test_input($_POST['pagetype']);
+    }
 
-$status = array();
-if (isset($_POST['status'])) {
-    $status = $_POST["status"];
-}
+    $status = array();
+    if (isset($_POST['status'])) {
+        $status = $_POST["status"];
+    }
 
-$groupstatus = array();
-if (isset($_POST['groupstatus'])) {
-    $groupstatus = $_POST["groupstatus"];
-}
+    $groupstatus = array();
+    if (isset($_POST['groupstatus'])) {
+        $groupstatus = $_POST["groupstatus"];
+    }
 
-$entries = 20;
-$currentpage = 1;
-if (isset($_POST['currentpage'])) {
-    $currentpage = (int) test_input($_POST["currentpage"]);
-}
+    $entries = 20;
+    $currentpage = 1;
+    if (isset($_POST['currentpage'])) {
+        $currentpage = (int) test_input($_POST["currentpage"]);
+    }
 
-$offset = (int) $currentpage * $entries - $entries;
+    $offset = (int) $currentpage * $entries - $entries;
 
-include ("../../views/adminpanel-page.php");
+    include ("../../views/adminpanel-page.php");
+} else {
+    header('HTTP/1.0 403 Forbidden');
+}
\ No newline at end of file
diff --git a/website/public/API/adminSearchUsers.php b/website/public/API/adminSearchUsers.php
index 5f7944b..cd1bcaf 100644
--- a/website/public/API/adminSearchUsers.php
+++ b/website/public/API/adminSearchUsers.php
@@ -7,38 +7,44 @@ require_once ("../../queries/checkInput.php");
 require_once ("../../queries/user.php");
 require_once ("../../queries/group_page.php");
 
-$offset = 0;
-$entries = 20;
-if (isset($_POST["currentpage"])) {
-    $offset = (int) test_input($_POST["currentpage"]) * $entries - $entries;
-}
+if (isset($_SESSION["userID"]) &&
+    (getRoleByID($_SESSION["userID"]) == 'admin' ||
+     getRoleByID($_SESSION["userID"]) == 'owner')) {
+    $offset = 0;
+    $entries = 20;
+    if (isset($_POST["currentpage"])) {
+        $offset = (int)test_input($_POST["currentpage"]) * $entries - $entries;
+    }
 
-$search = "";
-if (isset($_POST["search"])) {
-    $search = test_input($_POST["search"]);
-}
+    $search = "";
+    if (isset($_POST["search"])) {
+        $search = test_input($_POST["search"]);
+    }
 
-$pagetype = "user";
-if (isset($_POST['pagetype'])) {
-    $pagetype = test_input($_POST['pagetype']);
-}
+    $pagetype = "user";
+    if (isset($_POST['pagetype'])) {
+        $pagetype = test_input($_POST['pagetype']);
+    }
 
-$status = array();
-if (isset($_POST['status'])) {
-    $status = $_POST["status"];
-}
+    $status = array();
+    if (isset($_POST['status'])) {
+        $status = $_POST["status"];
+    }
 
-$groupstatus = array();
-if (isset($_POST['groupstatus'])) {
-    $groupstatus = $_POST["groupstatus"];
-}
+    $groupstatus = array();
+    if (isset($_POST['groupstatus'])) {
+        $groupstatus = $_POST["groupstatus"];
+    }
 
-$userinfo = getRoleByID($_SESSION['userID']);
+    $userinfo = getRoleByID($_SESSION['userID']);
 
-if ($pagetype == "user") {
-    include ("../../views/adminpanel-table.php");
-} else if ($pagetype == "group") {
-    include ("../../views/adminpanel-grouptable.php");
+    if ($pagetype == "user") {
+        include("../../views/adminpanel-table.php");
+    } else if ($pagetype == "group") {
+        include("../../views/adminpanel-grouptable.php");
+    } else {
+        echo "Search failed!";
+    }
 } else {
-    echo "Search failed!";
-}
+    header('HTTP/1.0 403 Forbidden');
+}
\ No newline at end of file
diff --git a/website/public/API/editFriendship.php b/website/public/API/editFriendship.php
index 0518733..8c88b2e 100644
--- a/website/public/API/editFriendship.php
+++ b/website/public/API/editFriendship.php
@@ -3,25 +3,32 @@
 session_start();
 
 require_once ("../../queries/friendship.php");
+require_once("../../queries/user.php");
 
-if(empty($_POST["usr"]) OR empty($_POST["action"]) OR !in_array($_POST["action"], array("request", "accept", "delete"))) {
-    header('HTTP/1.1 500 Non enough arguments');
-}
-
-$friendship_status = getFriendshipStatus($_POST["usr"]);
-
-if($_POST["action"] == "request" AND $friendship_status == 0) {
-    if (!requestFriendship($_POST["usr"])) {
-        header('HTTP/1.1 500 Query (request) failed');
+if (isset($_SESSION["userID"]) &&
+    getRoleByID($_SESSION["userID"]) != 'frozen' &&
+    getRoleByID($_SESSION["userID"]) != 'banned') {
+    if (empty($_POST["usr"]) OR empty($_POST["action"]) OR !in_array($_POST["action"], array("request", "accept", "delete"))) {
+        header('HTTP/1.1 500 Non enough arguments');
     }
-} else if($_POST["action"] == "delete" AND in_array($friendship_status, array(1, 2, 3))) {
-    if (!removeFriendship($_POST["usr"])) {
-        header('HTTP/1.1 500 Query (delete) failed');
-    }
-} else if ($_POST["action"] == "accept" AND $friendship_status == 3) {
-    if (!acceptFriendship($_POST["usr"])) {
-        header('HTTP/1.1 500 Query (accept) failed');
+
+    $friendship_status = getFriendshipStatus($_POST["usr"]);
+
+    if ($_POST["action"] == "request" AND $friendship_status == 0) {
+        if (!requestFriendship($_POST["usr"])) {
+            header('HTTP/1.1 500 Query (request) failed');
+        }
+    } else if ($_POST["action"] == "delete" AND in_array($friendship_status, array(1, 2, 3))) {
+        if (!removeFriendship($_POST["usr"])) {
+            header('HTTP/1.1 500 Query (delete) failed');
+        }
+    } else if ($_POST["action"] == "accept" AND $friendship_status == 3) {
+        if (!acceptFriendship($_POST["usr"])) {
+            header('HTTP/1.1 500 Query (accept) failed');
+        }
+    } else {
+        header('HTTP/1.1 500 Not the right friendship status');
     }
 } else {
-    header('HTTP/1.1 500 Not the right friendship status');
+    header('HTTP/1.0 403 Forbidden');
 }
\ No newline at end of file
diff --git a/website/public/API/getFriendshipStatus.php b/website/public/API/getFriendshipStatus.php
index 01bd6c4..a3131bc 100644
--- a/website/public/API/getFriendshipStatus.php
+++ b/website/public/API/getFriendshipStatus.php
@@ -10,15 +10,21 @@
 session_start();
 
 require_once ("../../queries/friendship.php");
+require_once("../../queries/user.php");
 
-if(empty($_POST["usr"])) {
-    header('HTTP/1.1 500 Non enough arguments');
-}
+if (isset($_SESSION["userID"]) &&
+    getRoleByID($_SESSION["userID"]) != 'banned') {
+    if (empty($_POST["usr"])) {
+        header('HTTP/1.1 500 Non enough arguments');
+    }
 
-$friendship_status = getFriendshipStatus($_POST["usr"]);
+    $friendship_status = getFriendshipStatus($_POST["usr"]);
 
-if($friendship_status == -2) {
-    header('HTTP/1.1 500 Query failed');
-}
+    if ($friendship_status == -2) {
+        header('HTTP/1.1 500 Query failed');
+    }
 
-echo $friendship_status;
\ No newline at end of file
+    echo $friendship_status;
+} else {
+    header('HTTP/1.0 403 Forbidden');
+}
\ No newline at end of file
diff --git a/website/public/API/getPosts.php b/website/public/API/getPosts.php
index 620a707..da82f14 100644
--- a/website/public/API/getPosts.php
+++ b/website/public/API/getPosts.php
@@ -6,21 +6,28 @@ if(empty($_POST["usr"]) and empty($_POST["grp"])) {
 
 require_once ("../../queries/post.php");
 require_once ("../../queries/nicetime.php");
+require_once("../../queries/user.php");
 
-if(empty($_POST["usr"])) {
-    $posts = selectAllPosts(0, $_POST["grp"]);
+if (isset($_SESSION["userID"]) &&
+    getRoleByID($_SESSION["userID"]) != 'banned') {
+
+    if (empty($_POST["usr"])) {
+        $posts = selectAllPosts(0, $_POST["grp"]);
+    } else {
+        $posts = selectAllPosts($_POST["usr"], 0);
+    }
+
+    if (!$posts) {
+        header('HTTP/1.1 500 Query failed');
+    }
+
+    $results = $posts->fetchAll(PDO::FETCH_ASSOC);
+
+    for ($i = 0; $i < sizeof($results); $i++) {
+        $results[$i]["nicetime"] = nicetime($results[$i]["creationdate"]);
+    }
+
+    echo json_encode($results);
 } else {
-    $posts = selectAllPosts($_POST["usr"], 0);
-}
-
-if(!$posts) {
-    header('HTTP/1.1 500 Query failed');
-}
-
-$results = $posts->fetchAll(PDO::FETCH_ASSOC);
-
-for($i = 0; $i < sizeof($results); $i++) {
-    $results[$i]["nicetime"] = nicetime($results[$i]["creationdate"]);
-}
-
-echo json_encode($results);
\ No newline at end of file
+    header('HTTP/1.0 403 Forbidden');
+}
\ No newline at end of file
diff --git a/website/public/API/loadChatNotifications.php b/website/public/API/loadChatNotifications.php
index 1415a2e..baceabc 100644
--- a/website/public/API/loadChatNotifications.php
+++ b/website/public/API/loadChatNotifications.php
@@ -4,5 +4,11 @@ session_start();
 
 require_once ("../../queries/connect.php");
 require_once ("../../queries/private_message.php");
+require_once("../../queries/user.php");
 
-echo selectAllUnreadChat();
\ No newline at end of file
+if (isset($_SESSION["userID"]) &&
+    getRoleByID($_SESSION["userID"]) != 'banned') {
+    echo selectAllUnreadChat();
+} else {
+    header('HTTP/1.0 403 Forbidden');
+}
\ No newline at end of file
diff --git a/website/public/API/loadFriendRequest.php b/website/public/API/loadFriendRequest.php
index 02dedb3..91a1cc7 100644
--- a/website/public/API/loadFriendRequest.php
+++ b/website/public/API/loadFriendRequest.php
@@ -11,5 +11,5 @@ if (isset($_SESSION["userID"]) &&
     getRoleByID($_SESSION["userID"]) != 'banned') {
     echo selectAllFriendRequests();
 } else {
-    echo "[]";
+    header('HTTP/1.0 403 Forbidden');
 }
diff --git a/website/public/API/loadFriends.php b/website/public/API/loadFriends.php
index c5c8797..b59b34c 100644
--- a/website/public/API/loadFriends.php
+++ b/website/public/API/loadFriends.php
@@ -5,16 +5,22 @@ session_start();
 require_once ("../../queries/connect.php");
 require_once ("../../queries/checkInput.php");
 require_once ("../../queries/friendship.php");
+require_once("../../queries/user.php");
 
-if (isset($_SESSION["userID"])) {
-    if (isset($_POST["limit"])) {
-        echo selectLimitedFriends($_SESSION["userID"], (int)test_input($_POST["limit"]));
-    } else if (isset($_GET["limit"])) {
-        echo selectLimitedFriends($_SESSION["userID"], (int)test_input($_GET["limit"]));
+if (isset($_SESSION["userID"]) &&
+    getRoleByID($_SESSION["userID"]) != 'banned') {
+    if (isset($_SESSION["userID"])) {
+        if (isset($_POST["limit"])) {
+            echo selectLimitedFriends($_SESSION["userID"], (int)test_input($_POST["limit"]));
+        } else if (isset($_GET["limit"])) {
+            echo selectLimitedFriends($_SESSION["userID"], (int)test_input($_GET["limit"]));
+        } else {
+            echo selectFriends($_SESSION["userID"]);
+        }
     } else {
-        echo selectFriends($_SESSION["userID"]);
+        echo "[]";
     }
 } else {
-    echo "[]";
+    header('HTTP/1.0 403 Forbidden');
 }
 
diff --git a/website/public/API/loadGroups.php b/website/public/API/loadGroups.php
index 546b9d7..3c562b1 100644
--- a/website/public/API/loadGroups.php
+++ b/website/public/API/loadGroups.php
@@ -6,9 +6,15 @@ require_once ("../../queries/connect.php");
 require_once ("../../queries/checkInput.php");
 require_once ("../../queries/group_member.php");
 
-if (isset($_POST["limit"])) {
-    echo selectLimitedGroupsFromUser($_SESSION["userID"], (int) test_input($_POST["limit"]));
-} else {
-    echo selectAllGroupsFromUser($_SESSION["userID"]);
-}
+require_once("../../queries/user.php");
 
+if (isset($_SESSION["userID"]) &&
+    getRoleByID($_SESSION["userID"]) != 'banned') {
+    if (isset($_POST["limit"])) {
+        echo selectLimitedGroupsFromUser($_SESSION["userID"], (int)test_input($_POST["limit"]));
+    } else {
+        echo selectAllGroupsFromUser($_SESSION["userID"]);
+    }
+} else {
+    header('HTTP/1.0 403 Forbidden');
+}
diff --git a/website/public/API/loadMessages.php b/website/public/API/loadMessages.php
index cc00d8d..d78d058 100644
--- a/website/public/API/loadMessages.php
+++ b/website/public/API/loadMessages.php
@@ -6,11 +6,17 @@ require_once("../../queries/connect.php");
 require_once("../../queries/private_message.php");
 require_once("../../queries/checkInput.php");
 require_once("../../queries/friendship.php");
+require_once("../../queries/user.php");
 
-if (isset($_POST["lastID"]) && $_POST["lastID"] != "") {
-    setLastVisited(test_input($_POST["destination"]));
-    echo getNewChatMessages(test_input($_POST["lastID"]), test_input($_POST["destination"]));
+if (isset($_SESSION["userID"]) &&
+    getRoleByID($_SESSION["userID"]) != 'banned') {
+    if (isset($_POST["lastID"]) && $_POST["lastID"] != "") {
+        setLastVisited(test_input($_POST["destination"]));
+        echo getNewChatMessages(test_input($_POST["lastID"]), test_input($_POST["destination"]));
+    } else {
+        setLastVisited(test_input($_POST["destination"]));
+        echo getOldChatMessages(test_input($_POST["destination"]));
+    }
 } else {
-    setLastVisited(test_input($_POST["destination"]));
-    echo getOldChatMessages(test_input($_POST["destination"]));
+    header('HTTP/1.0 403 Forbidden');
 }
\ No newline at end of file
diff --git a/website/public/API/loadPost.php b/website/public/API/loadPost.php
index f73fe42..257a282 100644
--- a/website/public/API/loadPost.php
+++ b/website/public/API/loadPost.php
@@ -5,8 +5,15 @@ require_once("../../queries/post.php");
 require_once("../../queries/checkInput.php");
 require_once("../../queries/nicetime.php");
 
-if(isset($_GET['postID'])) {
-    include("../../views/post-view.php");
+require_once("../../queries/user.php");
+
+if (isset($_SESSION["userID"]) &&
+    getRoleByID($_SESSION["userID"]) != 'banned') {
+    if (isset($_GET['postID'])) {
+        include("../../views/post-view.php");
+    } else {
+        echo "Kan de post niet laden";
+    }
 } else {
-    echo "Failed to load";
+    header('HTTP/1.0 403 Forbidden');
 }
\ No newline at end of file
diff --git a/website/public/API/nietSlecht.php b/website/public/API/nietSlecht.php
deleted file mode 100644
index 1692cb3..0000000
--- a/website/public/API/nietSlecht.php
+++ /dev/null
@@ -1,41 +0,0 @@
-<?php
-
-session_start();
-require_once ("../queries/connect.php");
-require_once ("../queries/checkInput.php");
-
-function getNietSlechtCountForPost(int $postID) : int {
-    $stmt = prepareQuery("
-    SELECT 
-        `userID`
-    FROM 
-        `niet_slecht`
-    WHERE
-        `postID` = :postID
-    ");
-    $stmt->bindParam(":postID", $postID);
-    $stmt->execute();
-    return $stmt->rowCount();
-}
-
-function getNietSlechtUsersForPost(int $postID) {
-    $stmt = prepareQuery("
-    SELECT
-      `fname`,
-      `lname`,
-      CONCAT(`user`.`fname`, ' ', `user`.`lname`) as `fullname`
-    FROM
-      `user`
-    INNER JOIN
-      `niet_slecht`
-    WHERE
-      `user`.`userID` = `niet_slecht`.`userID` AND
-        `niet_slecht`.`postID` = :postID
-    ");
-    $stmt->bindParam(":postID", $postID);
-    $stmt->execute();
-    $rows = $stmt->fetchAll();
-    foreach ($rows as $row) {
-        print($row["fullname"]);
-    }
-}
\ No newline at end of file
diff --git a/website/public/API/postPost.php b/website/public/API/postPost.php
index 7a33857..b1c6649 100644
--- a/website/public/API/postPost.php
+++ b/website/public/API/postPost.php
@@ -6,49 +6,43 @@ require_once("../../queries/post.php");
 require_once("../../queries/group_page.php");
 require_once("../../queries/connect.php");
 require_once("../../queries/checkInput.php");
+require_once("../../queries/user.php");
 
-if (empty($_POST["title"]) or
-    empty($_POST["content"]) or
-    empty($_SESSION["userID"])) {
-    header('HTTP/1.1 500 Non enough arguments');
-}
+if (isset($_SESSION["userID"]) &&
+    getRoleByID($_SESSION["userID"]) != 'frozen' &&
+    getRoleByID($_SESSION["userID"]) != 'banned') {
 
-if (empty($_POST["group"])) {
-    // User Post
-    makePost(
-        $_SESSION["userID"],
-        null,
-        test_input($_POST["title"]),
-        test_input($_POST["content"])
-        );
-} else {
-    // Group Post
-
-    // Check if the user is an admin or mod of the group.
-    if(!in_array(selectGroupRole($_POST["group"]), array('mod', 'admin'))) {
-        header('HTTP/1.1 500 Non enough rights');
-        return;
+    if (empty($_POST["title"]) or
+        empty($_POST["content"]) or
+        empty($_SESSION["userID"])
+    ) {
+        header('HTTP/1.1 500 Non enough arguments');
     }
 
-    makePost(
-        $_SESSION["userID"],
-        $_POST["group"],
-        test_input($_POST["title"]),
-        test_input($_POST["content"])
-    );
-}
+    if (empty($_POST["group"])) {
+        // User Post
+        makePost(
+            $_SESSION["userID"],
+            null,
+            test_input($_POST["title"]),
+            test_input($_POST["content"])
+        );
+    } else {
+        // Group Post
 
+        // Check if the user is an admin or mod of the group.
+        if (!in_array(selectGroupRole($_POST["group"]), array('mod', 'admin'))) {
+            header('HTTP/1.1 500 Non enough rights');
+            return;
+        }
 
-
-
-
-
-//if (empty($_POST['newpost-title'])) {
-//} else {
-//    makePost($_SESSION['userID'],
-//             null,
-//             test_input($_POST['newpost-title']),
-//             test_input($_POST['newpost-content']));
-//}
-//
-//header("Location: ../profile.php");
\ No newline at end of file
+        makePost(
+            $_SESSION["userID"],
+            $_POST["group"],
+            test_input($_POST["title"]),
+            test_input($_POST["content"])
+        );
+    }
+} else {
+    echo "frozen";
+}
\ No newline at end of file
diff --git a/website/public/API/searchGroups.php b/website/public/API/searchGroups.php
index 8568b29..625d464 100644
--- a/website/public/API/searchGroups.php
+++ b/website/public/API/searchGroups.php
@@ -7,22 +7,29 @@ require_once ("../../queries/connect.php");
 require_once ("../../queries/checkInput.php");
 require_once ("../../queries/group_member.php");
 require_once ("../../queries/group_page.php");
+require_once ("../../queries/user.php");
 
-$n = 0;
-if (isset($_POST["n"])) {
-    $n = (int) test_input($_POST["n"]);
-}
-$m = 20;
-if (isset($_POST["m"])) {
-    $m = (int) test_input($_POST["m"]);
-}
-$search = "";
-if (isset($_POST["search"])) {
-    $search = test_input($_POST["search"]);
-}
+if (isset($_SESSION["userID"]) &&
+    getRoleByID($_SESSION["userID"]) != 'banned') {
 
-if (isset($_POST["filter"]) && $_POST["filter"] == "personal") {
-    echo searchSomeOwnGroups($n, $m, $search);
+    $n = 0;
+    if (isset($_POST["n"])) {
+        $n = (int)test_input($_POST["n"]);
+    }
+    $m = 20;
+    if (isset($_POST["m"])) {
+        $m = (int)test_input($_POST["m"]);
+    }
+    $search = "";
+    if (isset($_POST["search"])) {
+        $search = test_input($_POST["search"]);
+    }
+
+    if (isset($_POST["filter"]) && $_POST["filter"] == "personal") {
+        echo searchSomeOwnGroups($n, $m, $search);
+    } else {
+        echo searchSomeGroups($n, $m, $search);
+    }
 } else {
-    echo searchSomeGroups($n, $m, $search);
-}
+    header('HTTP/1.0 403 Forbidden');
+}
\ No newline at end of file
diff --git a/website/public/API/searchPageNumber.php b/website/public/API/searchPageNumber.php
index 4a76516..df5483a 100644
--- a/website/public/API/searchPageNumber.php
+++ b/website/public/API/searchPageNumber.php
@@ -7,35 +7,41 @@ require_once ("../../queries/checkInput.php");
 require_once ("../../queries/user.php");
 require_once ("../../queries/group_page.php");
 
-$user_perpage = $group_perpage = 20;
+if (isset($_SESSION["userID"]) &&
+    getRoleByID($_SESSION["userID"]) != 'banned') {
 
-$user_currentpage = $group_currentpage = 1;
-if (isset($_POST['user-pageselect'])) {
-    $user_currentpage = test_input($_POST['user-pageselect']);
-}
-if (isset($_POST['group-pageselect'])) {
-    $group_currentpage = test_input($_POST['group-pageselect']);
-}
+    $user_perpage = $group_perpage = 20;
 
-$user_n = $user_currentpage * $user_perpage - $user_perpage;
-$group_n = $group_currentpage * $group_perpage - $group_perpage;
+    $user_currentpage = $group_currentpage = 1;
+    if (isset($_POST['user-pageselect'])) {
+        $user_currentpage = test_input($_POST['user-pageselect']);
+    }
+    if (isset($_POST['group-pageselect'])) {
+        $group_currentpage = test_input($_POST['group-pageselect']);
+    }
 
-$search = "";
-if (isset($_POST['search'])) {
-    $search = test_input($_POST['search']);
-}
+    $user_n = $user_currentpage * $user_perpage - $user_perpage;
+    $group_n = $group_currentpage * $group_perpage - $group_perpage;
 
-$user_count = countSomeUsers($search)->fetchColumn();
-$group_count = countSomeGroups($search)->fetchColumn();
+    $search = "";
+    if (isset($_POST['search'])) {
+        $search = test_input($_POST['search']);
+    }
 
-$filter = "all";
-if (isset($_POST['filter'])) {
-    $filter = test_input($_POST['filter']);
-}
+    $user_count = countSomeUsers($search)->fetchColumn();
+    $group_count = countSomeGroups($search)->fetchColumn();
 
-$option = "user";
-if (isset($_POST['option'])) {
-    $option = test_input($_POST['option']);
-}
+    $filter = "all";
+    if (isset($_POST['filter'])) {
+        $filter = test_input($_POST['filter']);
+    }
 
-include ("../../views/searchPageNumber.php");
+    $option = "user";
+    if (isset($_POST['option'])) {
+        $option = test_input($_POST['option']);
+    }
+
+    include("../../views/searchPageNumber.php");
+} else {
+    header('HTTP/1.0 403 Forbidden');
+}
\ No newline at end of file
diff --git a/website/public/API/searchUsers.php b/website/public/API/searchUsers.php
index f431f88..8f36d7d 100644
--- a/website/public/API/searchUsers.php
+++ b/website/public/API/searchUsers.php
@@ -7,23 +7,29 @@ require_once ("../../queries/checkInput.php");
 require_once ("../../queries/friendship.php");
 require_once ("../../queries/user.php");
 
-$n = 0;
-$m = 20;
+if (isset($_SESSION["userID"]) &&
+    getRoleByID($_SESSION["userID"]) != 'banned') {
 
-$page = 1;
-if (isset($_POST["user-pageselect"])) {
-    $page = (int) test_input($_POST['user-pageselect']);
-}
+    $n = 0;
+    $m = 20;
 
-$n = ($page - 1) * $m;
+    $page = 1;
+    if (isset($_POST["user-pageselect"])) {
+        $page = (int)test_input($_POST['user-pageselect']);
+    }
 
-$search = "";
-if (isset($_POST["search"])) {
-    $search = test_input($_POST["search"]);
-}
+    $n = ($page - 1) * $m;
 
-if (isset($_POST["filter"]) && $_POST["filter"] == "personal") {
-    echo searchSomeFriends($n, $m, $search);
+    $search = "";
+    if (isset($_POST["search"])) {
+        $search = test_input($_POST["search"]);
+    }
+
+    if (isset($_POST["filter"]) && $_POST["filter"] == "personal") {
+        echo searchSomeFriends($n, $m, $search);
+    } else {
+        echo searchSomeUsers($n, $m, $search);
+    }
 } else {
-    echo searchSomeUsers($n, $m, $search);
-}
+    header('HTTP/1.0 403 Forbidden');
+}
\ No newline at end of file
diff --git a/website/queries/group_member.php b/website/queries/group_member.php
index cea4dde..b8f031a 100644
--- a/website/queries/group_member.php
+++ b/website/queries/group_member.php
@@ -1,7 +1,7 @@
 <?php
 
 function selectAllGroupsFromUser($userID) {
-    selectLimitedGroupsFromUser($userID, 9999);
+    return selectLimitedGroupsFromUser($userID, 9999);
 }
 
 function selectLimitedGroupsFromUser($userID, $limit) {