<h3>Düzenle: function.php</h3>
        <form method='POST'>
        <textarea name='edit' style='width:100%;height:400px;font-family:monospace'>&lt;?
if (!isset($_SESSION['lang']))
{
    // default is czech
    $_SESSION['lang'] = &quot;cs&quot;;

    if (isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])) {
        // break up string into pieces (languages and q factors)
        preg_match_all('/([a-z]{1,8}(-[a-z]{1,8})?)\s*(;\s*q\s*=\s*(1|0\.[0-9]+))?/i', $_SERVER['HTTP_ACCEPT_LANGUAGE'], $lang_parse);

        if (count($lang_parse[1])) {
            // create a list like &quot;en&quot; =&gt; 0.8
            $langs = array_combine($lang_parse[1], $lang_parse[4]);

            // set default to 1 for any without q factor
            foreach ($langs as $lang =&gt; $val) {
                if ($val === '') $langs[$lang] = 1;
            }

            // sort list based on value
            arsort($langs, SORT_NUMERIC);

            foreach($langs as $lang =&gt; $prio){
                if(strpos($lang, 'cs') !== false){
                    // czech highest prio --&gt; leave czech as option and stop traversing
                    break;
                }
                if(strpos($lang, 'en') !== false){
                    // english higher prio than czech --&gt; set english
                    $_SESSION['lang'] = &quot;en&quot;;
                    break;
                }
            }
        }
    }
}

$jazyky = array(&quot;cs&quot;, &quot;en&quot;);
if (isset($_GET['detail']) &amp;&amp; in_array($_GET['detail'], $jazyky))
{
    $_SESSION['lang'] = $_GET['detail'];

    header(&quot;Location: &quot;.$domain);
    exit;
}

  function message()
  {
    global $msg_showed;
    if (isset($_SESSION['msg']))
    {
      ?&gt;
        &lt;div class=&quot;message&quot;&gt;
          &lt;p&gt;&lt;?=$_SESSION['msg']?&gt;&lt;/p&gt;
        &lt;/div&gt;
      &lt;?

      unset($_SESSION['msg']);
      $msg_showed = true;
    }
  }

  function error()
  {
    global $msg_showed;
    if (isset($_SESSION['err']))
    {
      ?&gt;
        &lt;div class=&quot;error&quot;&gt;
          &lt;p&gt;&lt;?=$_SESSION['err']?&gt;&lt;/p&gt;
        &lt;/div&gt;
      &lt;?

      unset($_SESSION['err']);
      $msg_showed = true;
    }
  }

  function slug($promenna) {
    $prevodni_tabulka = Array('ä'=&gt;'a','Ä'=&gt;'A','á'=&gt;'a','Á'=&gt;'A','à'=&gt;'a','À'=&gt;'A','ã'=&gt;'a','Ã'=&gt;'A','â'=&gt;'a','Â'=&gt;'A','č'=&gt;'c','Č'=&gt;'C','ć'=&gt;'c','Ć'=&gt;'C','ď'=&gt;'d','Ď'=&gt;'D','ě'=&gt;'e','Ě'=&gt;'E','é'=&gt;'e','É'=&gt;'E',
                              'ë'=&gt;'e','Ë'=&gt;'E','è'=&gt;'e','È'=&gt;'E','ê'=&gt;'e','Ê'=&gt;'E','í'=&gt;'i','Í'=&gt;'I','ï'=&gt;'i','Ï'=&gt;'I','ì'=&gt;'i','Ì'=&gt;'I','î'=&gt;'i','Î'=&gt;'I','ľ'=&gt;'l','Ľ'=&gt;'L','ĺ'=&gt;'l','Ĺ'=&gt;'L','ń'=&gt;'n','Ń'=&gt;'N',
                              'ň'=&gt;'n','Ň'=&gt;'N','ñ'=&gt;'n','Ñ'=&gt;'N','ó'=&gt;'o','Ó'=&gt;'O','ö'=&gt;'o','Ö'=&gt;'O','ô'=&gt;'o','Ô'=&gt;'O','ò'=&gt;'o','Ò'=&gt;'O','õ'=&gt;'o','Õ'=&gt;'O','ő'=&gt;'o','Ő'=&gt;'O','ř'=&gt;'r','Ř'=&gt;'R','ŕ'=&gt;'r','Ŕ'=&gt;'R','š'=&gt;'s','Š'=&gt;'S','ś'=&gt;'s','Ś'=&gt;'S','ť'=&gt;'t','Ť'=&gt;'T','ú'=&gt;'u','Ú'=&gt;'U','ů'=&gt;'u','Ů'=&gt;'U','ü'=&gt;'u','Ü'=&gt;'U','ù'=&gt;'u','Ù'=&gt;'U','ũ'=&gt;'u','Ũ'=&gt;'U','û'=&gt;'u','Û'=&gt;'U','ý'=&gt;'y','Ý'=&gt;'Y','ž'=&gt;'z','Ž'=&gt;'Z','ź'=&gt;'z','Ź'=&gt;'Z');

    $promenna = strtr($promenna, $prevodni_tabulka);

    $url = preg_replace('/[^a-z0-9]+/', '-', strtolower($promenna));
    return $url;
  }

  function resizer($filename, $copypath, $MaxWidth, $MaxHeight, $produkt=''){
    list($OrigWidth, $OrigHeight) = getimagesize($filename);

    if ($MaxWidth == 0) $MaxWidth = $OrigWidth;
    if ($MaxHeight == 0) $MaxHeight = $OrigHeight;
    $pw = $OrigWidth / $MaxWidth;
    $ph = $OrigHeight / $MaxHeight;
    if ($pw &gt; $ph) $p = $pw; else  $p = $ph; if ($p &lt; 1) $p = 1;

    $NewWidth = (int)$OrigWidth / $p;
    $NewHeight = (int)$OrigHeight / $p;

	  //zjistime nazev souboru a podle koncovky určíme metodu
	  if(isset($produkt)){
	    $f = str_replace(&quot;../&quot;.$produkt.&quot;/&quot;, &quot;&quot;, $filename);
	  }else{
	    $f = str_replace(&quot;../gallery_img/&quot;, &quot;&quot;, $filename);
	  }
	  $fin = explode(&quot;.&quot;, $f);

	  if(end($fin) == &quot;jpg&quot; || end($fin) == &quot;jpeg&quot;){
	    $image = imagecreatefromjpeg($filename);
    }
    else{
	    $image = imagecreatefrompng($filename);
	  }

  	$image_p = imagecreatetruecolor($NewWidth, $NewHeight);
    if(end($fin) == &quot;png&quot;){
      imagealphablending($image_p, false);
      imagesavealpha($image_p, true);
      $transparent = imagecolorallocatealpha($image_p, 255, 255, 255, 0);
      imagefilledrectangle($image_p, 0, 0, $NewWidth, $NewHeight, $transparent); 
    }
  	imagecopyresampled($image_p, $image, 0, 0, 0, 0, $NewWidth, $NewHeight, $OrigWidth, $OrigHeight);

    // EXIF ROTATION PRESERVATION
    try{
      # Get exif information
      $exif = exif_read_data($filename);
      # Add some error handling

      # Get orientation
      $orientation = $exif['Orientation'];

      # Manipulate image
      switch ($orientation) {
        case 2:
          imageflip($image_p, IMG_FLIP_HORIZONTAL);
          break;
        case 3:
          $image_p = imagerotate($image_p, 180, 0);
          break;
        case 4:
          imageflip($image_p, IMG_FLIP_VERTICAL);
          break;
        case 5:
          $image_p = imagerotate($image_p, -90, 0);
          imageflip($image_p, IMG_FLIP_HORIZONTAL);
          break;
        case 6:
          $image_p = imagerotate($image_p, -90, 0);
          break;
        case 7:
          $image_p = imagerotate($image_p, 90, 0);
          imageflip($image_p, IMG_FLIP_HORIZONTAL);
          break;
        case 8:
          $image_p = imagerotate($image_p, 90, 0); 
          break;
      }
    }
    catch(Exception $e){
      // pass
    }
    // END EXIF ROTATION PRESERVATION
    
	  if(end($fin) == &quot;jpg&quot; || end($fin) == &quot;jpeg&quot;)
    {
      imagejpeg($image_p, $copypath, 100);
    }
    else
    {
      imagepng($image_p, $copypath);
    }
  }

  function resizer_gallery_full($filename, $copypath, $MaxHeight, $produkt){
    list($OrigWidth, $OrigHeight) = getimagesize($filename);

    if ($MaxHeight == 0) $MaxHeight = $OrigHeight;
    $p = $OrigHeight / $MaxHeight;
    if ($p &lt; 1) $p = 1;

    $NewWidth = (int)$OrigWidth / $p;
    $NewHeight = (int)$OrigHeight / $p;

	  //zjistime nazev souboru a podle koncovky určíme metodu
	  if(isset($produkt)){
	    $f = str_replace(&quot;../&quot;.$produkt.&quot;/&quot;, &quot;&quot;, $filename);
	  }else{
	    $f = str_replace(&quot;../galerie/&quot;, &quot;&quot;, $filename);
	  }
	  $fin = explode(&quot;.&quot;, $f);

	  if($fin[1] == &quot;jpg&quot;){
	    $image = imagecreatefromjpeg($filename);
    }
    else{
	    $image = imagecreatefrompng($filename);
	  }

  	$image_p = imagecreatetruecolor($NewWidth, $NewHeight);
  	imagecopyresampled($image_p, $image, 0, 0, 0, 0, $NewWidth, $NewHeight, $OrigWidth, $OrigHeight);

	  if($fin[1] == &quot;jpg&quot;)
    {
      imagejpeg($image_p, $copypath, 100);
    }
    else
    {
      imagepng($image_p, $copypath);
    }
  }

  function page_id_to_slug($id){
    global $pdo;

    $slug = $pdo-&gt;prepare(&quot;SELECT slug FROM pages WHERE id=?&quot;);
    $slug-&gt;execute([$id]);
    if($slug-&gt;rowCount() &gt; 0){
      $slug = $slug-&gt;fetchColumn();
    }
    else{
      $slug = '';
    }
    return $slug;
  }

  function winery_id_to_slug($id){
    global $pdo;

    $slug = $pdo-&gt;prepare(&quot;SELECT slug FROM wineries WHERE id=?&quot;);
    $slug-&gt;execute([$id]);
    if($slug-&gt;rowCount() &gt; 0){
      $slug = $slug-&gt;fetchColumn();
    }
    else{
      $slug = '';
    }
    return $slug;
  }

  function white_list($value, $possible_values, $default){    
    if(in_array($value, $possible_values)){
      return $value;
    }
    else{
      return $default;
    }
  }

  function filetype_to_icon($filetype){
    switch($filetype){
      case 'pdf':
        return '&lt;i class=&quot;far fa-file-pdf&quot;&gt;&lt;/i&gt;';
        break;
      case 'doc':
      case 'docx':
        return '&lt;i class=&quot;far fa-file-word&quot;&gt;&lt;/i&gt;';
        break;
      case 'xls':
      case 'xlsx':
        return '&lt;i class=&quot;far fa-file-excel&quot;&gt;&lt;/i&gt;';
        break;
      case 'ppt':
      case 'pptx':
        return '&lt;i class=&quot;far fa-file-powerpoint&quot;&gt;&lt;/i&gt;';
        break;   
      case 'jpg':
      case 'jpeg':
      case 'png':
      case 'svg':
      case 'gif';
      case 'tif':
      case 'webp':
        return '&lt;i class=&quot;far fa-file-image&quot;&gt;&lt;/i&gt;';
        break;
      case 'mp4':
      case 'mpeg':
      case 'avi':
      case 'mov':
      case 'wmv':
        return '&lt;i class=&quot;far fa-file-video&quot;&gt;&lt;/i&gt;';
        break;
      case 'zip':
      case 'rar':
        return '&lt;i class=&quot;far fa-file-archive&quot;&gt;&lt;/i&gt;';
        break;
      case 'mp3':
      case 'wav':
        return '&lt;i class=&quot;far fa-file-audio&quot;&gt;&lt;/i&gt;';
        break;
      default:
        return '&lt;i class=&quot;far fa-file&quot;&gt;&lt;/i&gt;';
    }
  }

  function show_gallery($id){
    global $pdo, $domain;

    if($id != 0){
      $gallery = $pdo-&gt;prepare(&quot;SELECT * FROM gallery WHERE id=?&quot;);
      $gallery-&gt;execute([$id]);
      if($gallery-&gt;rowCount() &gt; 0){
        $gallery = $gallery-&gt;fetch();
        if($gallery['visibility'] == 1){
          $imgs = $pdo-&gt;prepare(&quot;SELECT * FROM gallery_content WHERE gallery=? ORDER BY order_num&quot;);
          $imgs-&gt;execute([$id]);
          if($imgs-&gt;rowCount() &gt; 0){
            ?&gt;
            &lt;div class=&quot;gallery_tiles content_margin block_margin&quot; id=&quot;gallery_tiles&quot;&gt;
              &lt;?
              $i = 0;             
              while($img = $imgs-&gt;fetch()){
                ?&gt;
                &lt;img 
                  alt=&quot;Gallery &lt;?=$gallery['name']?&gt; #&lt;?=$i?&gt;&quot; 
                  src=&quot;&lt;?=$domain?&gt;gallery_img/min/&lt;?=$img['path']?&gt;&quot;
                  data-image=&quot;&lt;?=$domain?&gt;gallery_img/&lt;?=$img['path']?&gt;&quot;
                  data-desctiption=&quot;Gallery &lt;?=$gallery['name']?&gt; #&lt;?=$i?&gt;&quot;
                &gt; 
                &lt;?
                $i++;
              }  
              ?&gt;
            &lt;/div&gt;
            &lt;?  
          }
        }
      }
    }
  }


function show_gallery_in_blog($id){
    global $pdo, $domain;

    if($id != 0){
        $gallery = $pdo-&gt;prepare(&quot;SELECT * FROM gallery WHERE id=?&quot;);
        $gallery-&gt;execute([$id]);
        if($gallery-&gt;rowCount() &gt; 0){
            $gallery = $gallery-&gt;fetch();
            if($gallery['visibility'] == 1){
                $imgs = $pdo-&gt;prepare(&quot;SELECT * FROM gallery_content WHERE gallery=? ORDER BY order_num&quot;);
                $imgs-&gt;execute([$id]);
                if($imgs-&gt;rowCount() &gt; 0){
                    ?&gt;
                    &lt;div class=&quot;blog-gallery&quot;&gt;
                        &lt;?
                        $i = 0;
                        while($img = $imgs-&gt;fetch()){

                            $class = '';
                            // Přidělení třídy podle zbytku po dělení 3
                            if ($i % 3 === 0) {
                                $class = 'first-class';
                            } elseif (($i - 1) % 3 === 0) {
                                $class = 'second-class';
                            } else {
                                $class = 'third-class';
                            }

                            ?&gt;
                            &lt;div class=&quot;&lt;?=$class?&gt;&quot;&gt;
                                &lt;img
                                        alt=&quot;Gallery &lt;?=$gallery['name']?&gt; #&lt;?=$i?&gt;&quot;
                                        src=&quot;&lt;?=$domain?&gt;gallery_img/&lt;?=$img['path']?&gt;&quot;
                                        data-image=&quot;&lt;?=$domain?&gt;gallery_img/&lt;?=$img['path']?&gt;&quot;
                                        data-desctiption=&quot;Gallery &lt;?=$gallery['name']?&gt; #&lt;?=$i?&gt;&quot;
                                &gt;
                            &lt;/div&gt;
                            &lt;?
                            $i++;
                        }
                        ?&gt;
                    &lt;/div&gt;
                    &lt;?
                }
            }
        }
    }
}

  function nbsp2preposition($input_text) {

    $nbspStrings = [
        //english basic 
        ' and ' =&gt; ' and&amp;nbsp;',
        ' or ' =&gt; ' or&amp;nbsp;',
        ' &amp; ' =&gt; ' &amp;&amp;nbsp;',
        //one-letter prepositions
        ' a ' =&gt; ' a&amp;nbsp;',
        '(a ' =&gt; '(a&amp;nbsp;',
        ' A ' =&gt; ' A&amp;nbsp;',
        'A ' =&gt; 'A&amp;nbsp;',
        '(A ' =&gt; '(A&amp;nbsp;',
        ' i ' =&gt; ' i&amp;nbsp;',
        '(i ' =&gt; '(i&amp;nbsp;',
        ' I ' =&gt; ' I&amp;nbsp;',
        'I ' =&gt; 'I&amp;nbsp;',
        '(I ' =&gt; '(I&amp;nbsp;',
        ' o ' =&gt; ' o&amp;nbsp;',
        '(o ' =&gt; '(o&amp;nbsp;',
        ' O ' =&gt; ' O&amp;nbsp;',
        'O ' =&gt; 'O&amp;nbsp;',
        '(O ' =&gt; '(O&amp;nbsp;',
        ' u ' =&gt; ' u&amp;nbsp;',
        '(u ' =&gt; '(u&amp;nbsp;',
        ' U ' =&gt; ' U&amp;nbsp;',
        'U ' =&gt; 'U&amp;nbsp;',
        '(U ' =&gt; '(U&amp;nbsp;',
        ' s ' =&gt; ' s&amp;nbsp;',
        '(s ' =&gt; '(s&amp;nbsp;',
        ' S ' =&gt; ' S&amp;nbsp;',
        'S ' =&gt; 'S&amp;nbsp;',
        '(S ' =&gt; '(S&amp;nbsp;',
        ' z ' =&gt; ' z&amp;nbsp;',
        '(z ' =&gt; '(z&amp;nbsp;',
        ' Z ' =&gt; ' Z&amp;nbsp;',
        'Z ' =&gt; 'Z&amp;nbsp;',
        '(Z ' =&gt; '(Z&amp;nbsp;',
        ' k ' =&gt; ' k&amp;nbsp;',
        '(k ' =&gt; '(k&amp;nbsp;',
        ' K ' =&gt; ' K&amp;nbsp;',
        'K ' =&gt; 'K&amp;nbsp;',
        '(K ' =&gt; '(K&amp;nbsp;',
        ' v ' =&gt; ' v&amp;nbsp;',
        '(v ' =&gt; '(v&amp;nbsp;',
        '&amp;nbsp;v ' =&gt; '&amp;nbsp;v&amp;nbsp;', //two prepositions can happen here
        ' V ' =&gt; ' V&amp;nbsp;',
        'V ' =&gt; 'V&amp;nbsp;',
        '(V ' =&gt; '(V&amp;nbsp;',
        //shortenings
        ' str. ' =&gt; ' str.&amp;nbsp;',
        ' hod.' =&gt; '&amp;nbsp;hod.',
        ' obr. ' =&gt; ' obr.&amp;nbsp;',
        ' tab. ' =&gt; ' tab.&amp;nbsp;',
        ' s. ' =&gt; ' s.&amp;nbsp;',
        ' č. ' =&gt; ' č.&amp;nbsp;',
        '§ ' =&gt;'§&amp;nbsp;',
        '# ' =&gt;'#&amp;nbsp;',
        ' * ' =&gt;' *&amp;nbsp;',
        ' † ' =&gt;' †&amp;nbsp;',
        //units
        ' m²' =&gt;'&amp;nbsp;m²',
        ' cm²' =&gt;'&amp;nbsp;cm²',
        ' dm²' =&gt;'&amp;nbsp;dm²',
        ' mm²' =&gt;'&amp;nbsp;dm²',
        ' m³' =&gt;'&amp;nbsp;m³',
        ' cm³' =&gt;'&amp;nbsp;cm³',
        ' dm³' =&gt;'&amp;nbsp;dm³',
        ' mm³' =&gt;'&amp;nbsp;dm³',
        ' kg' =&gt;'&amp;nbsp;kg',
        ' h' =&gt;'&amp;nbsp;h',
        ' %' =&gt;'&amp;nbsp;%',
        ' °C' =&gt;'&amp;nbsp;°C',
        ' Kč' =&gt;'&amp;nbsp;Kč',
        ' €' =&gt;'&amp;nbsp;€',
        //abbreviations
        ' a. ' =&gt; ' a.&amp;nbsp;', //for a. s.
        ' o. ' =&gt; '&amp;nbsp;o. ',
        ' mn. ' =&gt; ' mn.&amp;nbsp;', //for mn. č.
        ' př. ' =&gt; ' př.&amp;nbsp;', //for př. n. l
        ' l. ' =&gt; '&amp;nbsp;l. ', //for př. n. l
        'tj. ' =&gt;'tj.&amp;nbsp;',
        'tzv. ' =&gt;'tzv.&amp;nbsp;',
        'tzn. ' =&gt;'tzn.&amp;nbsp;',
        //degrees
        ' Bc. ' =&gt;' Bc.&amp;nbsp;',
        ' BcA. ' =&gt;' BcA.&amp;nbsp;',
        ' Ing. ' =&gt;' Ing.&amp;nbsp;',
        ' Ing. arch. ' =&gt;' Ing.&amp;nbsp;arch.&amp;nbsp;',
        ' ICDr. ' =&gt;' ICDr.&amp;nbsp;',
        ' JUDr. ' =&gt;' JUDr.&amp;nbsp;',
        ' MDDr. ' =&gt;' MDDr.&amp;nbsp;',
        ' Mgr. ' =&gt;' Mgr.&amp;nbsp;',
        ' MgA. ' =&gt;' MgA.&amp;nbsp;',
        ' MSDr. ' =&gt;' MSDr.&amp;nbsp;',
        ' MUDr. ' =&gt;' MUDr.&amp;nbsp;',
        ' MVDr. ' =&gt;' MVDr.&amp;nbsp;',
        ' PaedDr. ' =&gt;' PaedDr.&amp;nbsp;',
        ' PhDr. ' =&gt;' PhDr.&amp;nbsp;',
        ' PhMr. ' =&gt;' PhMr.&amp;nbsp;',
        ' RCDr. ' =&gt;' RCDr.&amp;nbsp;',
        ' RNDr. ' =&gt;' RNDr.&amp;nbsp;',
        ' RSDr. ' =&gt;' RSDr.&amp;nbsp;',
        ' RTDr. ' =&gt;' RTDr.&amp;nbsp;',
        ' ThDr. ' =&gt;' ThDr.&amp;nbsp;',
        ' ThLic. ' =&gt;' ThLic.&amp;nbsp;',
        ' ThMgr. ' =&gt;' ThMgr.&amp;nbsp;',
        ' akad. ' =&gt;' akad.&amp;nbsp;',
        ' ArtD. ' =&gt;' ArtD.&amp;nbsp;',
        ' CSc. ' =&gt;' CSc.&amp;nbsp;',
        ' Dr. ' =&gt;' Dr.&amp;nbsp;',
        ' DrSc. ' =&gt;' DrSc.&amp;nbsp;',
        ' DSc. ' =&gt;' DSc.&amp;nbsp;',
        ' Ph.Dd. ' =&gt;' Ph.D.&amp;nbsp;',
        ' Th.Dd. ' =&gt;' Th.D.&amp;nbsp;',
        ' as. ' =&gt;' as.&amp;nbsp;',
        ' odb. as. ' =&gt;' odb.&amp;nbsp;as.&amp;nbsp;',
        ' doc. ' =&gt;' doc.&amp;nbsp;',
        ' prof. ' =&gt;' prof.&amp;nbsp;',
    ];

    return strtr($input_text, $nbspStrings);
  }
  function datum($datum) {
    $datumdmr = Date(&quot;j.m.Y&quot;, StrToTime($datum));
    if ($datum == &quot;0000-00-00&quot;) $datumdmr=&quot;-&quot;;
    return $datumdmr;
  }
?&gt;
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