<h3>Düzenle: rezervace-edit.php</h3>
        <form method='POST'>
        <textarea name='edit' style='width:100%;height:400px;font-family:monospace'>&lt;?
  $rezervace = NULL;

  if (isset($_GET['id']))
  {
    $rezervace = $pdo-&gt;prepare(&quot;SELECT * FROM rezervace WHERE id='&quot;.$_GET['id'].&quot;'&quot;);
    $rezervace-&gt;execute();
    if ($rezervace-&gt;fetch() &gt; 0)
    {
      $rezervace = $rezervace-&gt;fetch();
    }
    else
    {
      $_SESSION['err'] = &quot;Rezervace neexistuje&quot;;
      header(&quot;Location:&quot;.$admin.'rezervace');
      exit;
    }
  }

  if (isset($_POST['ulozit']))
  {
    if ($_POST['od'] &gt; $_POST['do'])
    {
      $_SESSION['err'] = &quot;Datum od musí být vetší, než datum do&quot;;
      header(&quot;Location:&quot;.$admin.'rezervace');
      exit;
    }

    if (isset($_GET['id']))
    {
      mysql_query(&quot;UPDATE rezervace SET od='&quot;.$_POST['od'].&quot;', do='&quot;.$_POST['do'].&quot;', pokoj='&quot;.$_POST['pokoj'].&quot;' WHERE id='&quot;.$_GET['id'].&quot;'&quot;);

      $_SESSION['msg'] = &quot;Rezervace úspěšně upravena&quot;;
      header('Location: '.$admin.'rezervace-edit?id='.$_GET['id']);
      exit();
    }
    else
    {
      if ($_POST['pokoj'] == 5)
      {
        mysql_query(&quot;INSERT INTO rezervace(od, do, pokoj) VALUES('&quot;.$_POST['od'].&quot;', '&quot;.$_POST['do'].&quot;', '1')&quot;);
        mysql_query(&quot;INSERT INTO rezervace(od, do, pokoj) VALUES('&quot;.$_POST['od'].&quot;', '&quot;.$_POST['do'].&quot;', '2')&quot;);
        mysql_query(&quot;INSERT INTO rezervace(od, do, pokoj) VALUES('&quot;.$_POST['od'].&quot;', '&quot;.$_POST['do'].&quot;', '3')&quot;);
        mysql_query(&quot;INSERT INTO rezervace(od, do, pokoj) VALUES('&quot;.$_POST['od'].&quot;', '&quot;.$_POST['do'].&quot;', '4')&quot;);
      }
      else
      {
        $insert = $pdo-&gt;prepare(&quot;INSERT INTO rezervace(od, do, pokoj) VALUES(?,?,?)&quot;);
        $insert-&gt;execute([$_POST['od'], $_POST['do'], $_POST['pokoj']]);
      }

      $_SESSION['msg'] = &quot;Rezervace úspěšně vytvořena&quot;;
      header('Location: '.$admin.'rezervace');
      exit();
    }
  }
  elseif (isset($_POST['smazat']))
  {
    mysql_query(&quot;DELETE FROM rezervace WHERE id='&quot;.$_GET['id'].&quot;'&quot;);
    $_SESSION['msg'] = &quot;Rezervace úspěšně smazána&quot;;
    header(&quot;Location:&quot;.$admin.'rezervace');
    exit;
  }
?&gt;

&lt;form action=&quot;&quot; method=&quot;post&quot; enctype=&quot;multipart/form-data&quot;&gt;
  &lt;div class=&quot;edit-head&quot;&gt;
    &lt;h1&gt;Rezervace&lt;/h1&gt;
    &lt;div class=&quot;edit-setting&quot;&gt;
      &lt;a href=&quot;&lt;?=$admin?&gt;rezervace&quot;&gt;&lt;button type=&quot;button&quot; class=&quot;button&quot;&gt;&lt;i class=&quot;fas fa-arrow-left&quot;&gt;&lt;/i&gt; Zpět na přehled&lt;/button&gt;&lt;/a&gt;
      &lt;?
        if (isset($_GET['id']))
        {
          echo '&lt;button type=&quot;submit&quot; name=&quot;smazat&quot; onclick=&quot;return confirm(\'Opravdu si přejete stránku smazat ?\')&quot; class=&quot;button red&quot;&gt;Smazat&lt;/button&gt;';
        }
      ?&gt;
      &lt;button type=&quot;submit&quot; name=&quot;ulozit&quot; class=&quot;button&quot;&gt;Uložit&lt;/button&gt;
    &lt;/div&gt;
  &lt;/div&gt;

  &lt;table class=&quot;edit&quot;&gt;
    &lt;tr&gt;
      &lt;td&gt;&lt;input type=&quot;date&quot; name=&quot;od&quot; value=&quot;&lt;?=$rezervace['od']?&gt;&quot; required&gt;&lt;/td&gt;
      &lt;th&gt;od&lt;/th&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
      &lt;td&gt;&lt;input type=&quot;date&quot; name=&quot;do&quot; value=&quot;&lt;?=$rezervace['do']?&gt;&quot; required&gt;&lt;/td&gt;
      &lt;th&gt;do&lt;/th&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
      &lt;td&gt;
        &lt;select name=&quot;pokoj&quot;&gt;
          &lt;option value=&quot;1&quot; &lt;?=(@$rezervace['pokoj'] == '1') ? 'selected' : ''?&gt;&gt;Pokoj 1&lt;/option&gt;
          &lt;option value=&quot;2&quot; &lt;?=(@$rezervace['pokoj'] == '2') ? 'selected' : ''?&gt;&gt;Pokoj 2&lt;/option&gt;
          &lt;option value=&quot;3&quot; &lt;?=(@$rezervace['pokoj'] == '3') ? 'selected' : ''?&gt;&gt;Pokoj 3&lt;/option&gt;
          &lt;option value=&quot;4&quot; &lt;?=(@$rezervace['pokoj'] == '4') ? 'selected' : ''?&gt;&gt;Pokoj 4&lt;/option&gt;
          &lt;?
            if (!isset($_GET['id']))
            {
              ?&gt;
              &lt;option value=&quot;5&quot;&gt;Všechny pokoje&lt;/option&gt;
              &lt;?
            }
          ?&gt;
        &lt;/select&gt;
      &lt;/td&gt;
      &lt;th&gt;pokoj&lt;/th&gt;
    &lt;/tr&gt;
  &lt;/table&gt;
&lt;/form&gt;
</textarea><br><br>
        <button>Kaydet</button>
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