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<?php declare(strict_types=1); |
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/** |
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* NewBB 4.3x, the forum module for XOOPS project |
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* |
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* @copyright XOOPS Project (https://xoops.org) |
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* @license GNU GPL 2.0 or later (https://www.gnu.org/licenses/gpl-2.0.html) |
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* @author Taiwen Jiang (phppp or D.J.) <[email protected]>, irmtfan <[email protected]> |
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* @since 4.3 |
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*/ |
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define('NEWBB_FUNCTIONS_TEXT_LOADED', true); |
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if (!defined('NEWBB_FUNCTIONS_TEXT')) { |
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define('NEWBB_FUNCTIONS_TEXT', 1); |
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/** |
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* function for select from a text where it have some keywords |
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* |
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* @param string $text |
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* @param mixed[]|string $queryarray |
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* @param int $selectstartlag |
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* @param int $selectlength |
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* @param bool $striptags |
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* @param string $excludetags |
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* @param string $start_trimmarker |
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* @param string $end_trimmarker |
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* @return string |
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*/ |
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function newbb_selectText( |
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string $text, |
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$queryarray, |
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int $selectstartlag = 100, |
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int $selectlength = 200, |
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bool $striptags = true, |
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string $excludetags = '<br>', |
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string $start_trimmarker = '[...]', |
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string $end_trimmarker = '[...]' |
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): string { |
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$sanitized_text = $striptags ? strip_tags($text, $excludetags) : $text; |
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$queryarray = newbb_str2array($queryarray); |
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$text_i = mb_strtolower($sanitized_text); |
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$queryarray = array_map('\strtolower', $queryarray); |
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$lengtharray = array_map('\strlen', $queryarray); |
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$maxlengthquery = max($lengtharray); |
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$lengthend_trimmarker = mb_strlen($end_trimmarker); |
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$select_text = ''; |
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$startpos = 0; |
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$endpos = mb_strlen($sanitized_text); |
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while ($startpos < $endpos) { |
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$pos = $endpos; |
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foreach ($queryarray as $query) { |
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if (false !== ($thispos = mb_strpos($text_i, $query, $startpos))) { |
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$pos = min($thispos, $pos); |
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} |
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} |
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if ($pos == $endpos) { |
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break; |
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} |
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$start = max($pos - $selectstartlag, $startpos - $maxlengthquery, 0); // $startpos is the last position in the previous select text |
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$length = $maxlengthquery + $selectlength; //xoops_local("strlen", $query) + 200; |
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$select_text .= '<p>'; |
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$select_text .= ($start > 0) ? $start_trimmarker . ' ' : ' '; |
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$select_text .= xoops_substr($sanitized_text, $start, $length + $lengthend_trimmarker + 1, ' ' . $end_trimmarker) . '</p>'; |
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$startpos = $start + $length + 1; // start searching from next position. |
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} |
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if (($select_text === '' || $select_text === '0')) { |
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return ''; |
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} // if no text return empty string |
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return '<span class="newbb_select_text">' . $select_text . '</span>'; |
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} |
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/** |
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* function for highlight a text when it have some keywords |
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* |
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* @param string|mixed[] $text |
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* @param mixed[]|string $queryarray |
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* |
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* @return string |
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*/ |
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function newbb_highlightText($text, $queryarray): string |
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{ |
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if (empty($GLOBALS['xoopsModuleConfig']['highlight_search_enable'])) { |
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return $text; |
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} |
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$queryarray = newbb_str2array($queryarray); |
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// if $queryarray is string |
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$highlight_text = $text; |
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foreach ($queryarray as $key => $query) { |
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// use preg_replace instead of str_replace to exclude all $queries inside html span tag |
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$highlight_text = preg_replace('/(?!(?:[^<]+>|[^>]+<\/a>))(' . preg_quote((string) $query, '/') . ')/si', newbb_highlighter($query, $key), $highlight_text); |
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} |
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return $highlight_text; |
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} |
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/** |
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* function for highlighting search results |
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* |
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* @param string $query |
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* @param int $i |
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* @return string |
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*/ |
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function newbb_highlighter(string $query, int $i): string |
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{ |
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return '<span class="newbb_highlight term' . $i . '">' . $query . '</span>'; |
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} |
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/** |
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* function for convert string to array |
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* @param string|mixed[] $str |
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* @return array |
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*/ |
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function newbb_str2array($str): array |
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{ |
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if (is_array($str)) { |
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return $str; |
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} |
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// split the phrase by any number of commas or space characters, |
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// which include " ", \r, \t, \n and \f |
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$temp_str = preg_split('/[\s,]+/', $str); |
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$strarray = []; |
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foreach ($temp_str as $s) { |
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$strarray[] = addslashes((string) $s); |
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} |
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return $strarray; |
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} |
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} |
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mambax7 /
newbb
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