XoopsModules25x / lexikon

    /**

     * @param $content

     */

public static function extractKeywords($content)

{

    global $xoopsTpl, $xoTheme, $xoopsModule, $xoopsModuleConfig;

    include_once XOOPS_ROOT_PATH . '/modules/lexikon/include/common.inc.php';

    $keywords_count = $xoopsModuleConfig['metakeywordsnum'];

    $tmp            = array();

    if (isset($_SESSION['xoops_keywords_limit'])) {    // Search the "Minimum keyword length"

            $limit = $_SESSION['xoops_keywords_limit'];

    } else {

        $configHandler                    = xoops_getHandler('config');

        $xoopsConfigSearch                = $configHandler->getConfigsByCat(XOOPS_CONF_SEARCH);

        $limit                            = $xoopsConfigSearch['keyword_min'];

        $_SESSION['xoops_keywords_limit'] = $limit;

    }

    $myts            = MyTextSanitizer::getInstance();

    $content         = str_replace('<br>', ' ', $content);

    $content         = $myts->undoHtmlSpecialChars($content);

    $content         = strip_tags($content);

    $content         = strtolower($content);

    $search_pattern  = array(

            ' ',

            "\t",

            "\r\n",

            "\r",

            "\n",

            ',',

            '.',

            "'",

            ';',

            ':',

            ')',

            '(',

            '"',

            '?',

            '!',

            '{',

            '}',

            '[',

            ']',

            '<',

            '>',

            '/',

            '+',

            '-',

            '_',

            '\\',

            '*'

        );

    $replace_pattern = array(

            ' ',

            ' ',

            ' ',

            ' ',

            ' ',

            ' ',

            ' ',

            ' ',

            '',

            '',

            '',

            '',

            '',

            '',

            '',

            '',

            '',

            '',

            '',

            '',

            '',

            '',

            '',

            '',

            '',

            '',

            ''

        );

    $content         = str_replace($search_pattern, $replace_pattern, $content);

    $keywords        = explode(' ', $content);

    switch (META_KEYWORDS_ORDER) {

            case 1:    // Returns keywords in the same order that they were created in the text

                $keywords = array_unique($keywords);

                break;

            case 2:    // the keywords order is made according to the reverse keywords frequency (so the less frequent words appear in first in the list)

                $keywords = array_count_values($keywords);

                asort($keywords);

                $keywords = array_keys($keywords);

                break;

            case 3:    // Same as previous, the only difference is that the most frequent words will appear in first in the list

                $keywords = array_count_values($keywords);

                arsort($keywords);

                $keywords = array_keys($keywords);

                break;

        }

    foreach ($keywords as $keyword) {

        if (strlen($keyword) >= $limit && !is_numeric($keyword)) {

            $tmp[] = $keyword;

        }

    }

    $tmp = array_slice($tmp, 0, $keywords_count);

    if (count($tmp) > 0) {

        if (isset($xoTheme) && is_object($xoTheme)) {

            $xoTheme->addMeta('meta', 'keywords', implode(',', $tmp));

        } else {    // Compatibility for old Xoops versions

                $xoopsTpl->assign('xoops_meta_keywords', implode(',', $tmp));

        }

    } else {

        if (!isset($configHandler) || !is_object($configHandler)) {

            $configHandler = xoops_getHandler('config');

        }

        $xoopsConfigMetaFooter = $configHandler->getConfigsByCat(XOOPS_CONF_METAFOOTER);

        if (isset($xoTheme) && is_object($xoTheme)) {

            $xoTheme->addMeta('meta', 'keywords', $xoopsConfigMetaFooter['meta_keywords']);

        } else {    // Compatibility for old Xoops versions

                $xoopsTpl->assign('xoops_meta_keywords', $xoopsConfigMetaFooter['meta_keywords']);

        }

    }

}

    // Create meta description based on content

    /**

 */

// Create the meta keywords based on content

function lx_extract_keywords($content) {

    global $xoopsTpl, $xoTheme, $xoopsModule, $xoopsModuleConfig;

    include_once XOOPS_ROOT_PATH.'/modules/lexikon/include/common.inc.php';

    $keywords_count = $xoopsModuleConfig['metakeywordsnum'];

    $tmp=array();

    if (isset($_SESSION['xoops_keywords_limit'])) {    // Search the "Minimum keyword length"

        $limit = $_SESSION['xoops_keywords_limit'];

    } else {

        $config_handler = xoops_gethandler('config');

        $xoopsConfigSearch = $config_handler->getConfigsByCat(XOOPS_CONF_SEARCH);

        $limit=$xoopsConfigSearch['keyword_min'];

        $_SESSION['xoops_keywords_limit']=$limit;

    }

    $myts = MyTextSanitizer::getInstance();

    $content = str_replace ("<br />", " ", $content);

    $content= $myts->undoHtmlSpecialChars($content);

    $content= strip_tags($content);

    $content=strtolower($content);

    $search_pattern=array("&nbsp;","\t","\r\n","\r","\n",",",".","'",";",":",")","(",'"','?','!','{','}','[',']','<','>','/','+','-','_','\\','*');

    $replace_pattern=array(' ',' ',' ',' ',' ',' ',' ',' ','','','','','','','','','','','','','','','','','','','');

    $content = str_replace($search_pattern, $replace_pattern, $content);

    $keywords=explode(' ',$content);

    switch (META_KEYWORDS_ORDER) {

    case 1:    // Returns keywords in the same order that they were created in the text

            $keywords=array_unique($keywords);

        break;

    case 2:    // the keywords order is made according to the reverse keywords frequency (so the less frequent words appear in first in the list)

        $keywords=array_count_values($keywords);

        asort($keywords);

        $keywords=array_keys($keywords);

        break;

    case 3:    // Same as previous, the only difference is that the most frequent words will appear in first in the list

        $keywords=array_count_values($keywords);

        arsort($keywords);

        $keywords=array_keys($keywords);

        break;

    }

    foreach($keywords as $keyword) {

        if (strlen($keyword)>=$limit && !is_numeric($keyword)) {

            $tmp[]=$keyword;

        }

    }

    $tmp=array_slice($tmp,0,$keywords_count);

    if (count($tmp)>0) {

        if (isset($xoTheme) && is_object($xoTheme)) {

            $xoTheme->addMeta( 'meta', 'keywords', implode(',',$tmp));

        } else {    // Compatibility for old Xoops versions

            $xoopsTpl->assign('xoops_meta_keywords', implode(',',$tmp));

        }

    } else {

        if (!isset($config_handler) || !is_object($config_handler)) {

            $config_handler = xoops_gethandler('config');

        }

        $xoopsConfigMetaFooter = $config_handler->getConfigsByCat(XOOPS_CONF_METAFOOTER);

        if (isset($xoTheme) && is_object($xoTheme)) {

            $xoTheme->addMeta( 'meta', 'keywords', $xoopsConfigMetaFooter['meta_keywords']);

        } else {    // Compatibility for old Xoops versions

            $xoopsTpl->assign('xoops_meta_keywords', $xoopsConfigMetaFooter['meta_keywords']);

        }

    }

}

// Create meta description based on content

function lx_get_metadescription($content) {