function word_highlight($body, $q_word, $enc = null, $msg = '', $extlink_class_name = 'ext', $word_max_len = 20)
{
if (is_null($enc)) {
if (function_exists('mb_internal_encoding')) {
$enc = mb_internal_encoding();
} else {
if (defined('_CHARSET')) {
$enc = _CHARSET;
} else {
$enc = 'EUC-JP';
}
}
}
$enc = strtoupper($enc);
// 外部リンクの場合 class="ext" を付加
if ($extlink_class_name) {
$_body = preg_replace_callback('/(<script.*?<\\/script>)|(<a[^>]+?href=(?:"|\')?(?!https?:\\/\\/' . $_SERVER['HTTP_HOST'] . ')https?:[^>]+?)>/isS', create_function('$arr', 'return $arr[1]? $arr[1] : ((strpos($arr[2], \'class=\') === FALSE)? "$arr[2] class=\\"' . $extlink_class_name . '\\">" : "$arr[0]");'), $body);
if ($_body) {
$body = $_body;
}
// for RCRE error.
}
if (!$q_word || !$body) {
return $body;
}
if (function_exists("xoops_gethandler")) {
$config_handler =& xoops_gethandler('config');
$xoopsConfigSearch =& $config_handler->getConfigsByCat(XOOPS_CONF_SEARCH);
} else {
$xoopsConfigSearch['keyword_min'] = 3;
}
//検索語ハイライト
$search_word = '';
//$words = array_flip(preg_split('/\s+/',$q_word,-1,PREG_SPLIT_NO_EMPTY));
$words = array_flip(HypCommonFunc::phrase_split($q_word));
$keys = array();
$cnt = 0;
if (function_exists('mb_strlen')) {
$strlen = create_function('$str', 'return mb_strlen("$str");');
} else {
$strlen = create_function('$str', 'return strlen("$str");');
}
foreach ($words as $word => $id) {
$_len = $strlen($word);
if ($_len < $xoopsConfigSearch['keyword_min']) {
continue;
}
if ($_len > $word_max_len) {
continue;
}
$keys[$word] = $strlen($word);
$cnt++;
if ($cnt > 10) {
break;
}
}
//arsort($keys,SORT_NUMERIC);
$keys = HypGetQueryWord::get_search_words(array_keys($keys), false, $enc);
$id = 0;
$utf8 = $enc === 'UTF-8' ? 'u' : '';
$php5_1 = version_compare(PHP_VERSION, '5.1.0', '>=');
foreach ($keys as $key => $pattern) {
$s_key = preg_replace('/&#(\\d+;)/', '&#$1', htmlspecialchars($key));
$_count = 0;
$pattern = $s_key[0] == '&' ? '/(<head.*?<\\/head>|<script.*?<\\/script>|<style.*?<\\/style>|<textarea.*?<\\/textarea>|<strong class="word\\d+">.*?<\\/strong>|<[^>]*>)|(' . $pattern . ')/isS' . $utf8 : '/(<head.*?<\\/head>|<script.*?<\\/script>|<style.*?<\\/style>|<textarea.*?<\\/textarea>|<strong class="word\\d+">.*?<\\/strong>|<[^>]*>|&(?:#[0-9]+|#x[0-9a-f]+|[0-9a-zA-Z]+);)|(' . $pattern . ')/isS' . $utf8;
$GLOBALS['HypGetQueryWord_Highlighted'] = false;
$_body = preg_replace_callback($pattern, create_function('$arr', 'if ($arr[1]) {return $arr[1];} else {$GLOBALS[\'HypGetQueryWord_Highlighted\'] = true; return \'<strong class="word' . $id . '">\'.$arr[2].\'</strong>\';}'), $body);
if ($GLOBALS['HypGetQueryWord_Highlighted']) {
$body = $_body;
$search_word .= ' <strong class="word' . $id . '">' . $s_key . '</strong>';
$id++;
}
}
if ($id) {
$_count = 0;
$body = str_replace('<!--HIGHLIGHT_SEARCH_WORD-->', '<div class="highlight_search_words">' . $msg . ': ' . $search_word . '</div>', $body, $_count);
if (!$_count) {
$body = preg_replace('/<body[^>]*?>/', '$0<div class="highlight_search_words">' . str_replace('\\', '\\\\', $msg) . ': ' . str_replace('\\', '\\\\', $search_word) . '</div>', $body);
}
}
return $body;
}
