Undefined index Opcje

[ilov3]

Witam, mam problem z uruchomieniem stronki którą kiedyś napisał kolega.
Pluje errorami.

[XML] pobierz, plaintext 
Notice: Undefined index: action in C:\xampp\htdocs\index.php on line 239
 
Notice: Undefined index: action in C:\xampp\htdocs\index.php on line 325
 
Notice: Undefined index: action in C:\xampp\htdocs\index.php on line 455
 
Notice: Undefined index: action in C:\xampp\htdocs\index.php on line 461
[XML] pobierz, plaintext 

239:

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 else if($_GET['action'] === "editprofile")
    {
        if(empty($_SESSION['username']) || empty($_SESSION['password']))
        {
            header("Refresh:0; url=index.php");
            echo "<script language='javascript'>alert('Musisz być zalogowany!');</script>";
            return 0;
        }
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[PHP] pobierz, plaintext 
else if($_GET['action'] === "newauction")
    {
        $query = mysql_query("SELECT * FROM categories");
        while ($row = mysql_fetch_array($query))
        {
            $auctionCategories .= '
                <option value="'.$row[id].'">'.$row[name].'</option>
            ';
        }
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Połączenie z bazą:

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<?php
 
	$connection = @mysql_connect("localhost", "root", "") or die("Brak połączenia z serwerem MySQL.<br />Błąd: ".mysql_error()); 
	$db = @mysql_select_db("zpi_project", $connection)  or die("Nie mogę połączyć się z bazą danych<br />Błąd: ".mysql_error()); 
	mysql_query ('SET NAMES utf8');
?>
[PHP] pobierz, plaintext 

W czym może leżeć problem?

[Tomplus]

Nie tłumacz się kolegą. Zostawiaj kod lepszy niż ten który zastałeś. Więc jak są takie ewidentne dziury w bezpieczeństwie, to nawet nie ma co dopuszczać później w internety.

Kod

\xampp\apache\logs\error.log

[ilov3]

Nie tłumacz się kolegą. Zostawiaj kod lepszy niż ten który zastałeś. Więc jak są takie ewidentne dziury w bezpieczeństwie, to nawet nie ma co dopuszczać później w internety.

Kod

\xampp\apache\logs\error.log

Na bezpieczeństwie mi nie zależy, chcę jedynie odpalić to lokalnie.

Kod

[Thu Nov 28 09:23:12.683963 2019] [ssl:warn] [pid 4812:tid 612] AH01909: www.example.com:443:0 server certificate does NOT include an ID which matches the server name
[Thu Nov 28 09:23:12.731950 2019] [core:warn] [pid 4812:tid 612] AH00098: pid file C:/xampp/apache/logs/httpd.pid overwritten -- Unclean shutdown of previous Apache run?
[Thu Nov 28 09:23:12.836334 2019] [ssl:warn] [pid 4812:tid 612] AH01909: www.example.com:443:0 server certificate does NOT include an ID which matches the server name
[Thu Nov 28 09:23:13.228240 2019] [mpm_winnt:notice] [pid 4812:tid 612] AH00455: Apache/2.4.37 (Win32) OpenSSL/1.0.2p PHP/5.6.40 configured -- resuming normal operations
[Thu Nov 28 09:23:13.228240 2019] [mpm_winnt:notice] [pid 4812:tid 612] AH00456: Apache Lounge VC11 Server built: Oct 22 2018 14:14:30
[Thu Nov 28 09:23:13.228240 2019] [core:notice] [pid 4812:tid 612] AH00094: Command line: 'c:\\xampp\\apache\\bin\\httpd.exe -d C:/xampp/apache'
[Thu Nov 28 09:23:13.256227 2019] [mpm_winnt:notice] [pid 4812:tid 612] AH00418: Parent: Created child process 15276
[Thu Nov 28 09:23:14.261850 2019] [ssl:warn] [pid 15276:tid 636] AH01909: www.example.com:443:0 server certificate does NOT include an ID which matches the server name
[Thu Nov 28 09:23:14.401825 2019] [ssl:warn] [pid 15276:tid 636] AH01909: www.example.com:443:0 server certificate does NOT include an ID which matches the server name
[Thu Nov 28 09:23:14.436410 2019] [mpm_winnt:notice] [pid 15276:tid 636] AH00354: Child: Starting 150 worker threads.
[Thu Nov 28 09:23:54.110543 2019] [:error] [pid 15276:tid 2036] [client ::1:7204] PHP Notice:  Undefined index: action in C:\\xampp\\htdocs\\index.php on line 49
[Thu Nov 28 09:23:54.110543 2019] [:error] [pid 15276:tid 2036] [client ::1:7204] PHP Notice:  Undefined index: action in C:\\xampp\\htdocs\\index.php on line 107
[Thu Nov 28 09:23:54.110543 2019] [:error] [pid 15276:tid 2036] [client ::1:7204] PHP Notice:  Undefined index: action in C:\\xampp\\htdocs\\index.php on line 239
[Thu Nov 28 09:23:54.110543 2019] [:error] [pid 15276:tid 2036] [client ::1:7204] PHP Notice:  Undefined index: action in C:\\xampp\\htdocs\\index.php on line 325
[Thu Nov 28 09:23:54.114542 2019] [:error] [pid 15276:tid 2036] [client ::1:7204] PHP Notice:  Undefined index: action in C:\\xampp\\htdocs\\index.php on line 455
[Thu Nov 28 09:23:54.114542 2019] [:error] [pid 15276:tid 2036] [client ::1:7204] PHP Notice:  Undefined index: action in C:\\xampp\\htdocs\\index.php on line 461
[Thu Nov 28 09:23:54.114542 2019] [:error] [pid 15276:tid 2036] [client ::1:7204] PHP Notice:  Undefined index: action in C:\\xampp\\htdocs\\index.php on line 533
[Thu Nov 28 09:23:54.114542 2019] [:error] [pid 15276:tid 2036] [client ::1:7204] PHP Notice:  Undefined index: action in C:\\xampp\\htdocs\\index.php on line 587
[Thu Nov 28 09:23:54.114542 2019] [:error] [pid 15276:tid 2036] [client ::1:7204] PHP Notice:  Undefined index: action in C:\\xampp\\htdocs\\index.php on line 649
[Thu Nov 28 09:23:54.114542 2019] [:error] [pid 15276:tid 2036] [client ::1:7204] PHP Notice:  Undefined index: action in C:\\xampp\\htdocs\\index.php on line 754
[Thu Nov 28 09:23:54.114542 2019] [:error] [pid 15276:tid 2036] [client ::1:7204] PHP Notice:  Undefined index: action in C:\\xampp\\htdocs\\index.php on line 805
[Thu Nov 28 09:23:54.114542 2019] [:error] [pid 15276:tid 2036] [client ::1:7204] PHP Notice:  Undefined index: action in C:\\xampp\\htdocs\\index.php on line 930
[Thu Nov 28 09:23:54.114542 2019] [:error] [pid 15276:tid 2036] [client ::1:7204] PHP Notice:  Undefined index: action in C:\\xampp\\htdocs\\index.php on line 961
[Thu Nov 28 09:23:54.118559 2019] [:error] [pid 15276:tid 2036] [client ::1:7204] PHP Notice:  Undefined index: action in C:\\xampp\\htdocs\\index.php on line 1109
[Thu Nov 28 09:23:54.138534 2019] [:error] [pid 15276:tid 2036] [client ::1:7204] PHP Notice:  Undefined variable: categories in C:\\xampp\\htdocs\\index.php on line 1220
[Thu Nov 28 09:23:54.158558 2019] [:error] [pid 15276:tid 2036] [client ::1:7204] PHP Notice:  Undefined index: username in C:\\xampp\\htdocs\\index.php on line 1267
[Thu Nov 28 09:23:54.162538 2019] [:error] [pid 15276:tid 2036] [client ::1:7204] PHP Notice:  Undefined index: password in C:\\xampp\\htdocs\\index.php on line 1267
[Thu Nov 28 09:23:54.198519 2019] [:error] [pid 15276:tid 2036] [client ::1:7204] PHP Notice:  Undefined variable: auctions in C:\\xampp\\htdocs\\index.php on line 1316

raczej nic nowego niż to co wyświetla się wraz z stroną główną