diff --git a/admin/api.php b/admin/api.php
index 9bbb386..0242590 100644
--- a/admin/api.php
+++ b/admin/api.php
@@ -1,106 +1,95 @@
 <?php
 $action = $_POST['action'];
-if (!empty($action)){
-    $config = json_decode(file_get_contents("../data/config.json"), true);
+$config = json_decode(file_get_contents("../data/config.json"), true);
+if (!empty($action) && $_POST["password"] == $config["admin_pwd"]){
+    $mysqli = new mysqli($config["mysqlhost"], $config["mysqluser"], $config["mysqlpass"], $config["mysqldb"]);
 
     if ($action == "verify"){
-        if ($_POST["password"] == $config["admin_pwd"]){
-            echo "OK";
-        }
-        else{
-            echo "ERROR";
-        }
+        echo "OK";
     }
 
     if ($action == "get"){
-        if ($_POST["password"] == $config["admin_pwd"]){
-            if(!file_exists("../data/pageindex.json")){
-                file_put_contents("../data/pageindex.json", "{}");
-            }
-            $stranky = json_decode(file_get_contents("../data/pageindex.json"), true);
-            $out = "<table><tbody><tr><th>ID</th><th>Content ID</th><th>Nickname</th><th>Button</th></tr>";
-            foreach($stranky as $idx => $arr) {
-                $id = htmlspecialchars($idx);
-                $nickname = htmlspecialchars($arr["nickname"]);
-                $contentid = htmlspecialchars($arr["contentid"]);
-                $out = $out . "<tr><td>$id</td><td>$contentid</td><td>$nickname</td><td><button onclick=\"delthis('$id')\">Delete</button></td></tr>";
-              }
-            $out = $out . "<tr><td><input id=\"addid\" placeholder=\"ID\"></td><td><input id=\"addcontentid\" placeholder=\"Content ID\"></td><td><input id=\"addnickname\" placeholder=\"Nickname\"></td><td><button id=\"linkadder\" onclick=\"justadd()\">Add</button></td></tr>";
-            $out = $out . "</tbody></table>";
-            echo $out;
+        $stmt1 = $mysqli->prepare("SELECT `LinkID`, `ContentID`, `Nickname` FROM Links");
+        $stmt1->bind_result($linkid, $contentid, $nickname);
+        $stmt1->execute();
+        $stmt1->store_result();
+        $out = "<table><tbody><tr><th>ID</th><th>Content ID</th><th>Nickname</th><th>Button</th></tr>";
+        while ($stmt1->fetch()) {
+            $id = htmlspecialchars($linkid);
+            $nickname = htmlspecialchars($nickname);
+            $contentid = htmlspecialchars($contentid);
+            $out = $out . "<tr><td>$id</td><td>$contentid</td><td>$nickname</td><td><button onclick=\"delthis('$id')\">Delete</button></td></tr>";
         }
+        $out = $out . "<tr><td><input id=\"addid\" placeholder=\"ID\"></td><td><input id=\"addcontentid\" placeholder=\"Content ID\"></td><td><input id=\"addnickname\" placeholder=\"Nickname\"></td><td><button id=\"linkadder\" onclick=\"justadd()\">Add</button></td></tr>";
+        $out = $out . "</tbody></table>";
+        echo $out;
     }
 
     if ($action == "delete" && !empty($_POST["id"])){
-        if ($_POST["password"] == $config["admin_pwd"]){
-            $stranky = json_decode(file_get_contents("../data/pageindex.json"), true);
-            unset($stranky[$_POST["id"]]);
-            file_put_contents("../data/pageindex.json", json_encode($stranky, JSON_PRETTY_PRINT));
-        }
+        $stmt2 = $mysqli->prepare("DELETE FROM Links WHERE `LinkID` = ?");
+        $stmt2->bind_param('s', $_POST["id"]);
+        $stmt2->execute();
+        $stmt2->store_result();
     }
     
     if ($action == "set" && !empty($_POST["id"]) && !empty($_POST["contentid"]) && !empty($_POST["nickname"])){
-        if ($_POST["password"] == $config["admin_pwd"]){
-            $stranky = json_decode(file_get_contents("../data/pageindex.json"), true);
-            $tmp = array("contentid"=>$_POST["contentid"], "nickname"=>$_POST["nickname"]);
-            $stranky[$_POST["id"]] = $tmp;
-            file_put_contents("../data/pageindex.json", json_encode($stranky, JSON_PRETTY_PRINT));
-        }
+        $stmt3 = $mysqli->prepare("INSERT INTO Links (`LinkID`, `ContentID`, `Nickname`) VALUES (?, ?, ?);");
+        $stmt3->bind_param('sss', $_POST["id"], $_POST["contentid"], $_POST["nickname"]);
+        $stmt3->execute();
+        $stmt3->store_result();
     }
 
     if ($action == "getcontent"){
-        if(!file_exists("../data/contents.json")){
-            file_put_contents("../data/contents.json", "{}");
-        }
-        if ($_POST["password"] == $config["admin_pwd"]){
-            $contents = json_decode(file_get_contents("../data/contents.json"), true);
-            $out = "<table><tbody><tr><th>Content ID</th><th>Content</th><th>Button</th></tr>";
-            foreach($contents as $idx => $content) {
-                $id = htmlspecialchars($idx);
-                $content = htmlspecialchars($content);
-                $out = $out . "<tr><td>$id</td><td>$content</td><td><button onclick=\"delcthis('$id')\">Delete</button></td></tr>";
-              }
-            $out = $out . "<tr><td><input id=\"addidc\" placeholder=\"Content ID\"></td><td><textarea id=\"addcontentc\" placeholder=\"Content\"></textarea></td><td><button id=\"contentadder\" onclick=\"justaddc()\">Add</button></td></tr>";
-            $out = $out . "</tbody></table>";
-            echo $out;
+        $stmt4 = $mysqli->prepare("SELECT `ContentID`, `Content` FROM Content");
+        $stmt4->bind_result ($contentid, $content);
+        $stmt4->execute();
+        $stmt4->store_result();
+        $out = "<table><tbody><tr><th>Content ID</th><th>Content</th><th>Button</th></tr>";
+        while ($stmt4->fetch()) {
+            $id = htmlspecialchars($contentid);
+            $content = htmlspecialchars($content);
+            $out = $out . "<tr><td>$id</td><td>$content</td><td><button onclick=\"delcthis('$id')\">Delete</button></td></tr>";
         }
+        $out = $out . "<tr><td><input id=\"addidc\" placeholder=\"Content ID\"></td><td><textarea id=\"addcontentc\" placeholder=\"Content\"></textarea></td><td><button id=\"contentadder\" onclick=\"justaddc()\">Add</button></td></tr>";
+        $out = $out . "</tbody></table>";
+        echo $out;
     }
 
     if ($action == "deletecontent" && !empty($_POST["id"])){
-        if ($_POST["password"] == $config["admin_pwd"]){
-            $contents = json_decode(file_get_contents("../data/contents.json"), true);
-            unset($contents[$_POST["id"]]);
-            file_put_contents("../data/contents.json", json_encode($contents, JSON_PRETTY_PRINT));
-        }
+        $stmt5 = $mysqli->prepare("DELETE FROM Content WHERE `ContentID` = ?");
+        $stmt5->bind_param('s', $_POST["id"]);
+        $stmt5->execute();
+        $stmt5->store_result();
     }
     
     if ($action == "setcontent" && !empty($_POST["id"]) && !empty($_POST["content"])){
-        if ($_POST["password"] == $config["admin_pwd"]){
-            $contents = json_decode(file_get_contents("../data/contents.json"), true);
-            $contents[$_POST["id"]] = $_POST["content"];
-            file_put_contents("../data/contents.json", json_encode($contents, JSON_PRETTY_PRINT));
-        }
+        $stmt6 = $mysqli->prepare("INSERT INTO Content (`ContentID`, `Content`) VALUES (?, ?);");
+        $stmt6->bind_param('ss', $_POST["id"], $_POST["content"]);
+        $stmt6->execute();
+        $stmt6->store_result();
     }
 
     if ($action == "getlog"&& !empty($_POST["id"])){
-        if(!file_exists("../data/logs.json")){
-            file_put_contents("../data/logs.json", "{}");
-        }
-        if ($_POST["password"] == $config["admin_pwd"]){
-            $logy = json_decode(file_get_contents("../data/logs.json"), true)[$_POST["id"]];
-            $out = "<table><tbody><tr><th>Action</th><th>Date and Time</th><th>Nickname</th><th>Link</th><th>IP</th></tr>";
-            foreach($logy as $arr) {
-                $action = htmlspecialchars($arr["action"]);
-                $link = htmlspecialchars($arr["link"]);
-                $nickname = htmlspecialchars($arr["nickname"]);
-                $ip = htmlspecialchars($arr["ip"]);
-                $datetime = htmlspecialchars($arr["datetime"]);
-                $out = $out . "<tr><td>$action</td><td>$datetime</td><td>$nickname</td><td>$link</td><td>$ip</td></tr>";
-              }
-            $out = $out . "</tbody></table>";
-            echo $out;
+        $stmt7 = $mysqli->prepare("SELECT `ID`, `Action`, `LinkID`, `ContentID`, `Datetime`, `Timestamp`, `Nickname`, `IP` FROM Logs");
+        $stmt7->bind_result ($rowidx, $actionx, $linkidx, $contentidx, $datetimex, $timestampx, $nicknamex, $ipx);
+        $stmt7->execute();
+        $stmt7->store_result();
+        $out = "<table><tbody><tr><th>Action</th><th>Date and Time</th><th>Nickname</th><th>Link</th><th>Content</th><th>IP</th></tr>";
+        while ($stmt7->fetch()) {
+            $action = htmlspecialchars($actionx);
+            $link = htmlspecialchars($linkidx);
+            $content = htmlspecialchars($contentidx);
+            $nickname = htmlspecialchars($nicknamex);
+            $ip = htmlspecialchars($ipx);
+            $datetime = htmlspecialchars($datetimex);
+            $out = $out . "<tr><td>$action</td><td>$datetime</td><td>$nickname</td><td>$link</td><td>$content</td><td>$ip</td></tr>";
         }
+        $out = $out . "</tbody></table>";
+        echo $out;
     }
 
 }
+else{
+    echo "ERROR";
+}
 ?>
\ No newline at end of file
diff --git a/index.php b/index.php
index ded7785..1de18d7 100644
--- a/index.php
+++ b/index.php
@@ -4,53 +4,39 @@ $idcko = $_GET['id'];
 
 if (!empty($idcko)){
 
+    $config = json_decode(file_get_contents("data/config.json"), true);
+    $mysqli = new mysqli($config["mysqlhost"], $config["mysqluser"], $config["mysqlpass"], $config["mysqldb"]);
+
     $ipcka = $_SERVER['REMOTE_ADDR'];
+    $curdate = date("H:i:s d.m.Y");
     
-    if(!file_exists("data/logs.json")){
-        file_put_contents("data/logs.json", "{}");
+    $stmt1 = $mysqli->prepare("SELECT `LinkID`, `ContentID`, `Nickname` FROM `Links` WHERE `LinkID` = ?");
+    $stmt1->bind_param("s", $idcko);
+    $stmt1->bind_result($linkid, $contentid, $nickname);
+    $stmt1->execute();
+    $stmt1->store_result();
+    if ($stmt1->num_rows() < 1) {
+        die("Nonexistent link");
     }
-
-    if(!file_exists("data/pageindex.json")){
-        file_put_contents("data/pageindex.json", "{}");
-    }
-
-    if(!file_exists("data/contents.json")){
-        file_put_contents("data/contents.json", "{}");
-    }
-
-    $stranky = json_decode(file_get_contents("data/pageindex.json"), true);
-    $contents = json_decode(file_get_contents("data/contents.json"), true);
-    $logs = json_decode(file_get_contents("data/logs.json"), true);
-
-
-    $alllog = "data/all.log";
-
-    if(array_key_exists($idcko, $stranky)){
-
-        $entry = $stranky[$idcko];
-
-        if (!array_key_exists($entry["contentid"], $contents)){
+    while ($stmt1->fetch()) {
+        $stmt2 = $mysqli->prepare("SELECT `Content` FROM Content WHERE `ContentID` = ?");
+        $stmt2->bind_param("s", $contentid);
+        $stmt2->bind_result ($content);
+        $stmt2->execute();
+        $stmt2->store_result();
+        if ($stmt2->num_rows() < 1) {
             die("Faulty link");
         }
-
-        $content = $contents[$entry["contentid"]];
-        $nickname = $entry["nickname"];
-        $logmessage = "Success from $nickname($idcko), IP: $ipcka\n";
-        if (!array_key_exists($idcko, $logs)){
-            $logs[$idcko] = [];
+        while ($stmt2->fetch()) {
+            $action = "Success";
+            $stmt3 = $mysqli->prepare("INSERT INTO Logs (`Action`, `LinkID`, `ContentID`, `Datetime`, `Nickname`, `IP`) VALUES (?, ?, ?, ?, ?, ?);");
+            $stmt3->bind_param('ssssss', $action, $idcko, $contentid, $curdate, $nickname, $ipcka);
+            $stmt3->execute();
+            $stmt3->store_result();
+            echo $content;
         }
-        $logs[$idcko][] = array("action"=>"Success", "datetime"=>date("H:i:s d.m.Y"), "link"=>$idcko, "nickname"=>$nickname, "ip"=>$ipcka);
-
-        file_put_contents("data/logs.json", json_encode($logs, JSON_PRETTY_PRINT));
-        file_put_contents($alllog, $logmessage, FILE_APPEND);
-
-        echo $content;
 
     }
-
-    else{
-        die("Nonexistent link");
-    }    
 }
 else{
     die("No link");