// check that we have access defined( '_VALID_MOS' ) or die( 'Restricted access' ); // register our event. It would be great of joomla had more events $_MAMBOTS->registerFunction( 'onPrepareContent', 'JoomSEO' ); function JoomSEO($published, &$row, &$params, $page=0) { global $database, $mainframe, $mosConfig_MetaKeys, $mosConfig_MetaDesc, $mosConfig_sitename; // perform a published check if (!$published) { return; } // get our bot parameters $query = "SELECT id FROM #__mambots WHERE element = 'JoomSEO' AND folder = 'content'"; $database->setQuery($query); $id = $database->loadResult(); // get our mambot object $mambot = new mosMambot($database); $mambot->load($id); $botParams = new mosParameters($mambot->params); // load all our vars //Title $titleLength = $botParams->get('titleLength', false); $titleOrder = $botParams->get('titleOrder', 1); $prependTitle = $botParams->get('prependTitle', false); $appendTitle = $botParams->get('appendTitle', false); // site name $showTitleSiteName = $botParams->get('showTitleSiteName', true); $overrideSiteName = $botParams->get('overrideSiteName', false); // content / heading title $showContentHeading = $botParams->get('showContentHeading', true); // paragraph $showFirstParagraph = $botParams->get('showFirstParagraph', false); $paragraphMinLength = $botParams->get('paragraphMinLength', 20); $paragraphLength = $botParams->get('paragraphLength', 50); // keywords $showTitleKeywords = $botParams->get('showTitleKeywords', true); $overrideTitleKeywords = $botParams->get('overrideTitleKeywords', false); $keywordMinCharacters = $botParams->get('keywordMinCharacters', 3); $titleKeywordQuantity = $botParams->get('titleKeywordQuantity', 5); // meta $metaKeywordsCount = $botParams->get('metaKeywordsCount', 50); $metaDescriptionMinLength = $botParams->get('metaDescriptionMinLength', 80); $metaDescriptionLength = $botParams->get('metaDescriptionLength', 150); // filter // when bot was first installed these were not being added unless bot was *saved* $defStickWords = ""; $stickyWords = $botParams->get('stickyWords', $defStickWords); $defBadWords = "0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z about an are as at be by com de en for from how in is it its la of on or that the this to was what when where who will with und the www and all has been your us up youll can if youve do know we not many you our but there they then more"; $badWords = $botParams->get('badWords', $defBadWords); $defBadCharacters = "0 1 2 3 4 5 6 7 8 9 > < & - , . ; : ) ( ? ! { } [ ] / ' " %"; $badCharacters = $botParams->get('badCharacters', $defBadCharacters); // bot activation $disableFrontpage = $botParams->get('disableFrontpage', false); // activation specific $disableFrontpageTitle = $botParams->get('disableFrontpageTitle', false); $disableFrontpageKeywords = $botParams->get('disableFrontpageKeywords', false); $disableFrontpageDescription = $botParams->get('disableFrontpageDescription', false); // front page overrides. Front page or corresponding item must be enabled though $overrideFrontPageTitle = $botParams->get('overrideFrontPageTitle', false); $overrideFrontPageKeywords = $botParams->get('overrideFrontPageKeywords', false); $overrideFrontPageDescription = $botParams->get('overrideFrontPageDescription', false); // SEO / Accessability // defaulted to false to as not to break existing templates $addHeadingTags = $botParams->get('addHeadingTags', false); // current settings $currentTitle = gettitle(); $currentContentHeading = $row->title; $currentMetaKeys = $mosConfig_MetaKeys; $currentMetaDesc = $mosConfig_MetaDesc; // added to limit sql queries $isFrontPage = IsFrontPage(); // firstly add our generator tag. // please leave this here as it will not affect seo // and gives my countless hours of programming an idea of use. global $beenHere; if (!$beenHere) { // add JoomSEO bot to Generator meta ReplaceMeta('Generator', ' JoomSEO by Phill Brown (http://www.joomseo.com).'); } // encompass our headings with hX tags // added first as we want this active even if the front page is disabled if ($addHeadingTags) { $row->title = AddHeadingTags($row->title, $addHeadingTags); } // check if we are enabled on the front page if (($isFrontPage) && ($disableFrontpage)) { // removed after added front page overrides and specific disabled attributes // were added after release 0.9 //if ($disabledFrontPageTitle) { // apply replacement text instead of joomla default // replacetitle($disabledFrontPageTitle); //} // exit from this bot return; } // clean and organise our text $text = PrepareText($row->text); // all CleanChars() no longer used as it was stopping other languages from operating proplerly //$text = CleanChars($text); $stickyWords = PrepareText($stickyWords); //$stickyWords = CleanChars($stickyWords); $badWords = PrepareText($badWords); //$badWords = CleanChars($badWords); $badCharacters = PrepareText($badCharacters); //$badCharacters = CleanChars($badCharacters); // clear existing meta keywords and descriptions $mosConfig_MetaKeys = ""; $mosConfig_MetaDesc = ""; // was thinking of adding later a check to use only first article or all articles // this get the total content from all articles from a com_frontpage global $botSefText; $botSefText .= $text; // get our site name // added to get the site title once global $newSiteName; //$newSiteName = null; if (!$newSiteName) { if ($showTitleSiteName) { $newSiteName = $mosConfig_sitename; if ($overrideSiteName) { $newSiteName = $overrideSiteName; } } } // get our content heading // added this to get first heading global $newContentHeading; //$newContentHeading = null; if (!$newContentHeading) { if ($showContentHeading) { $newContentHeading = $currentContentHeading; } } // get our first paragraph // added to get the paragraph once only global $newFirstParagraph; //$newFirstParagraph = null; if (!$newFirstParagraph) { if ($showFirstParagraph) { $newFirstParagraph = trim(GetDescription($botSefText, $paragraphMinLength, $paragraphLength)); } } // get our title keywords // no global as we need this to parse all keywords $newTitleKeywords = null; if ($showTitleKeywords) { $newTitleKeywords = GlueItems(GetKeywords($botSefText,$keywordMinCharacters,$titleKeywordQuantity,$stickyWords,$badWords,$badCharacters)); if ($overrideTitleKeywords) { $newTitleKeywords = GlueItems(GetKeywords($overrideTitleKeywords)); } } // sort our title $titleArray = array(); Push($titleArray, $prependTitle); switch ($titleOrder) { case 1://Site Name | Heading-Paragraph | Keywords Push($titleArray, $newSiteName); if ($newContentHeading != null) { Push($titleArray, ($newFirstParagraph) ? $newContentHeading ." - ". $newFirstParagraph : $newContentHeading); } else { Push($titleArray, $newFirstParagraph); } Push($titleArray, $newTitleKeywords); break; case 2://Site Name | Keywords | Heading-Paragraph Push($titleArray, $newSiteName); Push($titleArray, $newTitleKeywords); if ($newContentHeading != null) { Push($titleArray, ($newFirstParagraph) ? $newContentHeading ." - ". $newFirstParagraph : $newContentHeading); } else { Push($titleArray, $newFirstParagraph); } break; case 3://Heading-Paragraph | Site Name | Keywords if ($newContentHeading != null) { Push($titleArray, ($newFirstParagraph) ? $newContentHeading ." - ". $newFirstParagraph : $newContentHeading); } else { Push($titleArray, $newFirstParagraph); } Push($titleArray, $newSiteName); Push($titleArray, $newTitleKeywords); break; case 4://Heading-Paragraph | Keywords | Site Name if ($newContentHeading != null) { Push($titleArray, ($newFirstParagraph) ? $newContentHeading ." - ". $newFirstParagraph : $newContentHeading); } else { Push($titleArray, $newFirstParagraph); } Push($titleArray, $newTitleKeywords); Push($titleArray, $newSiteName); break; case 5://Keywords | Site Name | Heading-Paragraph Push($titleArray, $newTitleKeywords); Push($titleArray, $newSiteName); if ($newContentHeading != null) { Push($titleArray, ($newFirstParagraph) ? $newContentHeading ." - ". $newFirstParagraph : $newContentHeading); } else { Push($titleArray, $newFirstParagraph); } break; case 6://Keywords | Heading-Paragraph | Site Name Push($titleArray, $newTitleKeywords); if ($newContentHeading != null) { Push($titleArray, ($newFirstParagraph) ? $newContentHeading ." - ". $newFirstParagraph : $newContentHeading); } else { Push($titleArray, $newFirstParagraph); } Push($titleArray, $newSiteName); break; } Push($titleArray, $appendTitle); if ($titleLength) { $newTitle = substr(implode(' | ', $titleArray),0,$titleLength); } else { $newTitle = implode(' | ', $titleArray); } // its the front page so do front page specific handling if ($isFrontPage) { // get our frontpage title if ($disableFrontpageTitle) { // use the joomla generated title $newTitle = $currentTitle; } else { $newTitle = ($overrideFrontPageTitle) ? $overrideFrontPageTitle : $newTitle; } // get our frontpage keywords if ($disableFrontpageKeywords) { // use the joomla default $metaKeywords = $currentMetaKeys; } else { $metaKeywords = ($overrideFrontPageKeywords) ? $overrideFrontPageKeywords : GlueItems(GetKeywords($botSefText,$keywordMinCharacters,$metaKeywordsCount,$stickyWords,$badWords,$badCharacters)); } // get our frontpage description if ($disableFrontpageDescription) { // use the joomla default $metaDescription = $currentMetaDesc; } else { $metaDescription = ($overrideFrontPageDescription) ? $overrideFrontPageDescription : GetDescription($botSefText, $metaDescriptionMinLength, $metaDescriptionLength); } } else { // we are on any other page so perform normal operations $metaKeywords = GlueItems(GetKeywords($botSefText,$keywordMinCharacters,$metaKeywordsCount,$stickyWords,$badWords,$badCharacters)); $metaDescription = GetDescription($botSefText, $metaDescriptionMinLength, $metaDescriptionLength); } replacetitle($newTitle); ReplaceMeta('keywords', $metaKeywords); ReplaceMeta('description', $metaDescription); // set our been here status $beenHere = true; } /** * Add an item to our array * * @param array $stack * @param text $var */ function Push(&$stack, $var) { if ($var) { array_push($stack, $var); } } /** * Add H1, H2, H3... tags to text * * @param string $title * @param int $num * @return string */ function AddHeadingTags($title, $num) { return "$title"; } /** * Checks if current page is Joomla front page * * @return unknown */ function IsFrontPage() { global $database; global $Itemid; // if we have no option then we should have arrived at the front page of the site. // sef url mapping bypasses this but is caught below if (mosGetParam($_GET,'option','') == '') { return true; } // get the first menu item in mainmenu as this is the front page in joomla $query = "SELECT * from #__menu WHERE menutype = 'mainmenu' AND published = '1' ORDER BY ordering LIMIT 1"; $database->setQuery($query); $row = null; $database->loadObject($row); if ($Itemid == $row->id) { return true; } return false; } /** * Replaces current Joomla meta tag * code based from joomla.php * * @param string $name * @param string $content */ function ReplaceMeta($name, $content) { global $mainframe; $name = trim(htmlspecialchars($name)); $n = count($mainframe->_head['meta']); for ($i = 0; $i < $n; $i++) { if ($mainframe->_head['meta'][$i][0] == $name) { $content = trim(htmlspecialchars($content)); if ($content) { $mainframe->_head['meta'][$i][1] = $content; } return; } } $mainframe->addMetaTag($name, $content); } /** * Get current meta content * code based from joomla.php * * @param string $name * @return string */ function GetMeta($name) { global $mainframe; $name = trim(htmlspecialchars($name)); $n = count($mainframe->_head['meta']); for ($i = 0; $i < $n; $i++) { if ($mainframe->_head['meta'][$i][0] == $name) { return $mainframe->_head['meta'][$i][1]; } } } /** * Get a string of formatted keywords * * @param array key=>value $items * @return string */ function GlueItems($items) { // as format is in a $key=>$value pair extract the keys $keys = array_keys($items); // glue our array into a single string $ret = implode(', ', $keys); return $ret; } /** * Replace current title * * @param string $content */ function replacetitle($content) { global $mainframe; $mainframe->_head['title'] = $content; } /** * Append to current title * * @param string $content */ function appendtitle($content) { global $mainframe; $mainframe->_head['title'] .= $content; } /** * Get the current title * * @return string */ function gettitle() { global $mainframe; return $mainframe->_head['title']; } /** * Gets the description for the meta description tag * uses the sentence inside $minLength and $maxLength * or sentence... if sentence is bigger than $maxLength * * @param string $text * @param int $minLength * @param int $maxLength * @return string */ function GetDescription($text, $minLength = 100, $maxLength = 250) { if ($minLength > $maxLength) return; if (!$text) return; // previously sentences including 'Joomla 1.0' was stopping at "Joomla 1." therefor the philosophy has changed here. // we want a minumim of $minLength chars and a max of $maxLength chars, stopping at a sentence inbetween. // get pos of '.' $stop = strpos($text,'.'); if (($stop >= $minLength) && ($stop <= $maxLength)) { // display the full sentence as it is $desc = trim(substr($text,0,$stop + 1)); } else { // display the sentence cut short $desc = trim(substr($text, 0, $maxLength -3))."..."; } return ucfirst($desc); } /** * Returns an array of keywords * * @param string $text * @param int $keywordMinCharacters * @param int $top * @param string $stickyWords * @param string $badWords * @param string $badCharacters * @param bool $capitalise * @param char $delim * @return array key=>value */ function GetKeywords($text, $keywordMinCharacters = 1, $top = 0, $stickyWords = null, $badWords = null, $badCharacters = null, $capitalise = true, $delim=" ") { $text = strtolower($text); // remove any email addresses $regex = '/(([_A-Za-z0-9-]+)(\\.[_A-Za-z0-9-]+)*@([A-Za-z0-9-]+)(\\.[A-Za-z0-9-]+)*)/iex'; $replacement = ' '; $text = preg_replace($regex, $replacement, $text); // remove and unwanted characters $badCharacters = explode($delim, $badCharacters); foreach ($badCharacters as $badChar) { $text = str_replace ($badChar, null, $text); } // remove any unwanted words $badWords = explode($delim,$badWords); $firstWord = substr($text, 0, (strpos($text, " ")) +1); $lastWord = substr($text , strrpos($text, " ")); foreach ($badWords as $badWord) { // remove all instances at the beginning if (strcasecmp("$badWord ",$firstWord) == 0) { $text = substr($text, strlen($firstWord)); } // remove all instances in the middle $text = Replace(" $badWord ", " ", $text); // remove all instances at the end if (strcasecmp(" $badWord", $lastWord) == 0) { $text = substr($text, 0, strlen($text) - strlen($lastWord)); } } // capitalise our text if ($capitalise == true) { $text = ucwords($text); $stickyWords = ucwords($stickyWords); } $wordCount = array(); // add our stickywords $stickyWords = explode($delim,$stickyWords); foreach ($stickyWords as $stickyWord) { $wordCount[$stickyWord]=1; } // loop through all our words and count instances $words = explode($delim,$text); foreach ($words as $word) { $word = trim($word); // after all checking was still getting null chars from somewhere if (($word != null) && (strlen($word) >= $keywordMinCharacters)) { // check that word already has been added if (array_key_exists($word,$wordCount)) { // it does so add to our count $wordCount[$word] += 1; } else { // it doesnt so put it in once $wordCount[$word] = 1; } } } // sort the new word array @arsort($wordCount); $ret = array(); // return all elements if ($top == 0) { return $wordCount; } // return the top X number of elements if ($top < count($wordCount)) { $ret = array_slice($wordCount, 0, $top); } else { $ret = $wordCount; } //foreach ($wordCount as $key=>$val) { // echo "Key: $key Value: $val
"; //} return $ret; } /** * Clean and prepare text, remove any unwanted tags etc * * @param string $text * @return string */ function PrepareText($text) { // removed as redundant from strip_tags // and was causing parsing problems due to incorrect regex. // regex is fixed for the sake of being fixed. // convert html br to space /*$regex = '/()/i';*/ //$text = preg_replace($regex, " ", $text); // remove links /*$regex = '/()(.*?)(<\/a>)/i';*/ //$text = preg_replace($regex, " $2 ", $text); // convert html entities to chars $text = html_entity_decode($text, ENT_QUOTES); // strip any remaining html tags $text = strip_tags($text); // remove any mambot codes $regex = '(\{.*?\})'; $text = preg_replace($regex, " ", $text); // convert tabs to spaces // added below //$text = str_replace("\t", " ",$text); // convert newlines and tabs to spaces $text = str_replace(array("\r\n", "\r", "\n", "\t"), " ", $text); // remove any extra spaces while (strchr($text," ")) { $text = str_replace(" ", " ",$text); } // general sentence tidyup for ($cnt = 1; $cnt < strlen($text); $cnt++) { // add a space after any full stops or comma's for readability // added as strip_tags was often leaving no spaces if (($text{$cnt} == '.') || ($text{$cnt} == ',')) { if (isset($text{$cnt+1})) { if ($text{$cnt+1} != ' ') { $text = substr_replace($text, ' ', $cnt + 1, 0); } } } } return trim($text); } /** * Removes any non readable characters * * @param string $text * @return string */ function CleanChars($text) { for ($cnt=0; $cnt < strlen($text); $cnt++) { $chr = $text{$cnt}; $ord = ord($chr); if ($ord < 32 or $ord > 126) { $chr = " "; $text{$cnt} = $chr; } } return $text; } /** * Case insensitive replace * * @param string $search * @param string $replace * @param string $subject * @return string */ function Replace($search, $replace, $subject, $word = false) { if ($word) { $regex = "/\b$search\b/i"; } else { $regex = "/$search/i"; } return preg_replace($regex, $replace, $subject); } ?>

Ученые объяснили, почему рыбу нельзя запивать вином

Автор Administrator

23.10.2009 г.

Ученые выяснили, почему рыба не сочетается с красным вином. Оказалось, что неприятный рыбный привкус после совместного употребления этих продуктов появляется из-за содержащегося в вине железа.

Последнее обновление ( 25.10.2009 г. )