function calc_weights($wordarray, $title, $host, $path, $keywords, $url_parts)
{
global $db_con, $index_host, $index_meta_keywords, $sort_results, $domain_mul, $cn_seg, $clear, $dompromo, $keypromo;
$hostarray = unique_array(explode(" ", preg_replace("/[^[:alnum:]-]+/i", " ", strtolower($host))));
$patharray = unique_array(explode(" ", preg_replace("/[^[:alnum:]-]+/i", " ", strtolower($path))));
if ($cn_seg == '1') {
// we need all characters for Chinese language
$titlearray = unique_array(explode(" ", strtolower($title)));
$keywordsarray = unique_array(explode(" ", strtolower($keywords)));
} else {
$titlearray = unique_array(explode(" ", preg_replace("/[^[:alnum:]-]+/i", " ", strtolower($title))));
$keywordsarray = unique_array(explode(" ", preg_replace("/[^[:alnum:]-]+/i", " ", strtolower($keywords))));
}
$path_depth = countSubstrs($path, "/");
$main_url_factor = '1';
if ($sort_results == '2') {
// enter here if 'Main URLs (domains) on top' is selected
$act_host = $host;
$act_path = $url_parts['path'];
$act_query = $url_parts['query'];
// try to find main URL for localhost systems
if ($act_host == 'localhost' && substr_count($act_path, ".") == '0' && substr_count($act_path, "/") <= '3') {
$main_url_factor = $domain_mul;
// if localhost: increase weight for domains in path
}
/*
if ($act_host == 'localhost' && substr_count($act_path, ".") == '1' && substr_count($act_path, "/") <= '3') {
$main_url_factor = $domain_mul/2; // if localhost: increase weight for sub-domains in path slightly
}
*/
// only these files are exepted as valid part of the url path
$act_path = str_replace('index.php', '', $act_path);
$act_path = str_replace('index.html', '', $act_path);
$act_path = str_replace('index.htm', '', $act_path);
$act_path = str_replace('index.shtml', '', $act_path);
// try to find main URL in the wild
if ($act_host != 'localhost' && substr_count($act_host, ".") == '2' && strlen($act_path) <= '1' && !$url_parts['query']) {
$main_url_factor = $domain_mul;
// increase weight for main URLs (domains)
}
}
$promo = '';
$catch_found = '';
while (list($w, $word) = each($wordarray)) {
if ($keypromo == $word[1]) {
$catch_found = '1';
// catchword found in text
}
}
// for promoted domains, correct the weighting
if (!$keypromo && $dompromo && strstr($host, $dompromo)) {
$promo = '1';
}
// for promoted catchwords, correct the weighting
if (!$dompromo && $keypromo && $catch_found) {
$promo = '1';
}
// for promoted domains AND promoted catchwords , correct the weighting
if ($keypromo && $catch_found && $dompromo && strstr($host, $dompromo)) {
$promo = '1';
}
reset($wordarray);
while (list($wid, $word) = each($wordarray)) {
$word_in_path = 0;
$word_in_domain = 0;
$word_in_title = 0;
$meta_keyword = 0;
if ($index_host == 1) {
while (list($id, $path) = each($patharray)) {
if ($path[1] == $word[1]) {
$word_in_path = 1;
break;
}
}
reset($patharray);
while (list($id, $host) = each($hostarray)) {
if ($host[1] == $word[1]) {
$word_in_domain = 1;
break;
}
}
reset($hostarray);
}
if ($index_meta_keywords == 1) {
while (list($id, $keyword) = each($keywordsarray)) {
if ($keyword[1] == $word[1]) {
$meta_keyword = 1;
break;
}
}
reset($keywordsarray);
}
while (list($id, $tit) = each($titlearray)) {
if ($tit[1] == $word[1]) {
$word_in_title = 1;
break;
}
}
reset($titlearray);
$wordarray[$wid][3] = (int) calc_weight($wordarray[$wid][2], $word_in_title, $word_in_domain, $word_in_path, $path_depth, $meta_keyword, $main_url_factor, $host, $promo);
}
if ($clear == 1) {
unset($titlearray, $keywordsarray, $hostarray, $patharray, $act_path, $act_host, $act_query);
}
reset($wordarray);
return $wordarray;
}
function calc_weights($wordarray, $title, $host, $path, $keywords)
{
global $index_host, $index_meta_keywords;
$hostarray = unique_array(explode(" ", preg_replace("/[^[:alnum:]-]+/i", " ", strtolower($host))));
$patharray = unique_array(explode(" ", preg_replace("/[^[:alnum:]-]+/i", " ", strtolower($path))));
$titlearray = unique_array(explode(" ", preg_replace("/[^[:alnum:]-]+/i", " ", strtolower($title))));
$keywordsarray = unique_array(explode(" ", preg_replace("/[^[:alnum:]-]+/i", " ", strtolower($keywords))));
$path_depth = countSubstrs($path, "/");
while (list($wid, $word) = each($wordarray)) {
$word_in_path = 0;
$word_in_domain = 0;
$word_in_title = 0;
$meta_keyword = 0;
if ($index_host == 1) {
while (list($id, $path) = each($patharray)) {
if ($path[1] == $word[1]) {
$word_in_path = 1;
break;
}
}
reset($patharray);
while (list($id, $host) = each($hostarray)) {
if ($host[1] == $word[1]) {
$word_in_domain = 1;
break;
}
}
reset($hostarray);
}
if ($index_meta_keywords == 1) {
while (list($id, $keyword) = each($keywordsarray)) {
if ($keyword[1] == $word[1]) {
$meta_keyword = 1;
break;
}
}
reset($keywordsarray);
}
while (list($id, $tit) = each($titlearray)) {
if ($tit[1] == $word[1]) {
$word_in_title = 1;
break;
}
}
reset($titlearray);
$wordarray[$wid][2] = (int) calc_weight($wordarray[$wid][2], $word_in_title, $word_in_domain, $word_in_path, $path_depth, $meta_keyword);
}
reset($wordarray);
return $wordarray;
}
function calc_weights($wordarray, $title, $host, $path, $keywords, $url_parts)
{
global $index_host, $index_meta_keywords, $sort_results, $domain_mul;
$hostarray = unique_array(explode(" ", preg_replace("/[^[:alnum:]-]+/i", " ", strtolower($host))));
$patharray = unique_array(explode(" ", preg_replace("/[^[:alnum:]-]+/i", " ", strtolower($path))));
$titlearray = unique_array(explode(" ", preg_replace("/[^[:alnum:]-]+/i", " ", strtolower($title))));
$keywordsarray = unique_array(explode(" ", preg_replace("/[^[:alnum:]-]+/i", " ", strtolower($keywords))));
$path_depth = countSubstrs($path, "/");
$main_url_factor = '1';
if ($sort_results == '2') {
// enter here if 'Main URLs (domains) on top' is selected
$act_host = $host;
$act_path = $url_parts['path'];
$act_query = $url_parts['query'];
// try to find main URL for localhost systems
if ($act_host == 'localhost' && substr_count($act_path, ".") == '0' && substr_count($act_path, "/") <= '3') {
$main_url_factor = $domain_mul;
// if localhost: increase weight for domains in path
}
/*
if ($act_host == 'localhost' && substr_count($act_path, ".") == '1' && substr_count($act_path, "/") <= '3') {
$main_url_factor = $domain_mul/2; // if localhost: increase weight for sub-domains in path slightly
}
*/
// only these files are exepted as valid part of the url path
$act_path = str_replace('index.php', '', $act_path);
$act_path = str_replace('index.html', '', $act_path);
$act_path = str_replace('index.htm', '', $act_path);
// try to find main URL in the wild
if ($act_host != 'localhost' && substr_count($act_host, ".") == '2' && strlen($act_path) <= '1' && !$url_parts['query']) {
$main_url_factor = $domain_mul;
// increase weight for main URLs (domains)
}
}
while (list($wid, $word) = each($wordarray)) {
$word_in_path = 0;
$word_in_domain = 0;
$word_in_title = 0;
$meta_keyword = 0;
if ($index_host == 1) {
while (list($id, $path) = each($patharray)) {
if ($path[1] == $word[1]) {
$word_in_path = 1;
break;
}
}
reset($patharray);
while (list($id, $host) = each($hostarray)) {
if ($host[1] == $word[1]) {
$word_in_domain = 1;
break;
}
}
reset($hostarray);
}
if ($index_meta_keywords == 1) {
while (list($id, $keyword) = each($keywordsarray)) {
if ($keyword[1] == $word[1]) {
$meta_keyword = 1;
break;
}
}
reset($keywordsarray);
}
while (list($id, $tit) = each($titlearray)) {
if ($tit[1] == $word[1]) {
$word_in_title = 1;
break;
}
}
reset($titlearray);
$wordarray[$wid][3] = (int) calc_weight($wordarray[$wid][2], $word_in_title, $word_in_domain, $word_in_path, $path_depth, $meta_keyword, $main_url_factor);
}
unset($titlearray, $keywordsarray, $hostarray, $patharray, $act_path, $act_host, $act_query);
reset($wordarray);
return $wordarray;
}
