Хак понятный быстрый поиск

<?php

@error_reporting ( E_ALL ^ E_WARNING ^ E_NOTICE );
@ini_set ( 'display_errors', true );
@ini_set ( 'html_errors', false );
@ini_set ( 'error_reporting', E_ALL ^ E_WARNING ^ E_NOTICE );

define( 'DATALIFEENGINE', true );
define( 'ROOT_DIR', substr( dirname(  __FILE__ ), 0, -12 ) );
define( 'ENGINE_DIR', ROOT_DIR . '/engine' );

include ENGINE_DIR . '/data/config.php';

if( $config['http_home_url'] == "" ) {
    
    $config['http_home_url'] = explode( "engine/ajax/search.php", $_SERVER['PHP_SELF'] );
    $config['http_home_url'] = reset( $config['http_home_url'] );
    $config['http_home_url'] = "http://" . $_SERVER['HTTP_HOST'] . $config['http_home_url'];

}

require_once ENGINE_DIR . '/classes/mysql.php';
require_once ENGINE_DIR . '/data/dbconfig.php';
require_once ENGINE_DIR . '/modules/functions.php';

dle_session();

require_once ENGINE_DIR . '/modules/sitelogin.php';
require_once ROOT_DIR . '/language/' . $config['langs'] . '/website.lng';
if( ! $is_logged ) $member_id['user_group'] = 5;

//################# Определение групп пользователей
$user_group = get_vars( "usergroup" );

if( ! $user_group ) {
    $user_group = array ();
    
    $db->query( "SELECT * FROM " . USERPREFIX . "_usergroups ORDER BY id ASC" );
    
    while ( $row = $db->get_row() ) {
        
        $user_group[$row['id']] = array ();
        
        foreach ( $row as $key => $value ) {
            $user_group[$row['id']][$key] = stripslashes($value);
        }
    
    }
    set_vars( "usergroup", $user_group );
    $db->free();
}

if( !$config['fast_search'] OR !$user_group[$member_id['user_group']]['allow_search'] ) die( "error" );

//####################################################################################################################
//                    Определение категорий и их параметры
//####################################################################################################################
$cat_info = get_vars( "category" );

if( ! is_array( $cat_info ) ) {
    $cat_info = array ();
    
    $db->query( "SELECT * FROM " . PREFIX . "_category ORDER BY posi ASC" );
    while ( $row = $db->get_row() ) {
        
        $cat_info[$row['id']] = array ();
        
        foreach ( $row as $key => $value ) {
            $cat_info[$row['id']][$key] = stripslashes( $value );
        }
    
    }
    set_vars( "category", $cat_info );
    $db->free();
}

$query = $db->safesql( htmlspecialchars ( trim(  strip_tags (convert_unicode( $_POST['query'], $config['charset'] ) ) ), ENT_QUOTES, $config['charset']) );

if( $query == "" ) die();

$buffer = "";
    function translit_en($string) {
    $converter = array(
    '`' => 'ё', 'q' => 'й', 'w' => 'ц', 'e' => 'у',
    'r' => 'к', 't' => 'е', 'y' => 'н', 'u' => 'г',
    'i' => 'ш', 'o' => 'щ', 'p' => 'з', '[' => 'х',
    ']' => 'ъ', 'a' => 'ф', 's' => 'ы', 'd' => 'в',
    'f' => 'а', 'g' => 'п', 'h' => 'р', 'j' => 'о',
    'k' => 'л', 'l' => 'д', ';' => 'ж', '\'' => 'э',
    'z' => 'я', 'x' => 'ч', 'c' => 'с', 'v' => 'м',
    'b' => 'и', 'n' => 'т', 'm' => 'ь', ',' => 'б',
    '.' => 'ю',
    '~' => 'Ё', 'Q' => 'Й', 'W' => 'Ц', 'E' => 'У',
    'R' => 'К', 'T' => 'Е', 'Y' => 'Н', 'U' => 'Г',
    'I' => 'Ш', 'O' => 'Щ', 'P' => 'З', '{' => 'Х',
    '}' => 'Ъ', 'A' => 'Ф', 'S' => 'Ы', 'D' => 'В',
    'F' => 'А', 'G' => 'П', 'H' => 'Р', 'J' => 'О',
    'K' => 'Л', 'L' => 'Д', ':' => 'Ж', '"' => 'Э',
    'Z' => 'Я', 'X' => 'Ч', 'C' => 'С', 'V' => 'М',
    'B' => 'И', 'N' => 'Т', 'M' => 'Ь', '<' => 'Б',
    '>' => 'Ю',
    );
    return strtr($string, $converter);
    }
    function translit_ru($string) {
    $converter = array(
    'ё' => '`', 'й' => 'q', 'ц' => 'w', 'у' => 'e',
    'к' => 'r', 'е' => 't', 'н' => 'y', 'г' => 'u',
    'ш' => 'i', 'щ' => 'o', 'з' => 'p', 'х' => '[',
    'ъ' => ']', 'ф' => 'a', 'ы' => 's', 'в' => 'd',
    'а' => 'f', 'п' => 'g', 'р' => 'h', 'о' => 'j',
    'л' => 'k', 'д' => 'l', 'ж' => ';', 'э' => '\'',
    'я' => 'z', 'ч' => 'x', 'с' => 'c', 'м' => 'v',
    'и' => 'b', 'т' => 'n', 'ь' => 'm', 'б' => ',',
    'ю' => '.',
    'Ё' => '~', 'Й' => 'Q', 'Ц' => 'W', 'У' => 'E',
    'К' => 'R', 'Е' => 'T', 'Н' => 'Y', 'Г' => 'U',
    'Ш' => 'I', 'Щ' => 'O', 'З' => 'P', 'Х' => '{',
    'Ъ' => '}', 'Ф' => 'A', 'Ы' => 'S', 'В' => 'D',
    'А' => 'F', 'П' => 'G', 'Р' => 'H', 'О' => 'J',
    'Л' => 'K', 'Д' => 'L', 'Ж' => ':', 'Э' => '"',
    'Я' => 'Z', 'Ч' => 'X', 'С' => 'C', 'М' => 'V',
    'И' => 'B', 'Т' => 'N', 'Ь' => 'M', 'Б' => '<',
    'Ю' => '>',
    );
    return strtr($string, $converter);
    }
$_TIME = time () + ($config['date_adjust'] * 60);
$this_date = date( "Y-m-d H:i:s", $_TIME );
if( $config['no_date'] AND !$config['news_future'] ) $this_date = " AND " . PREFIX . "_post.date < '" . $this_date . "'"; else $this_date = "";
    $en = translit_en($query);
    $ru = translit_ru($query);
    $db->query("SELECT id, short_story, title, date, alt_name, category FROM " . PREFIX . "_post WHERE " . PREFIX . "_post.approve=1" . $this_date . " AND (short_story LIKE '%{$query}%' OR full_story LIKE '%{$query}%' OR title LIKE '%{$query}%' OR short_story LIKE '%{$en}%' OR full_story LIKE '%{$en}%' OR title LIKE '%{$en}%' OR short_story LIKE '%{$ru}%' OR full_story LIKE '%{$ru}%' OR title LIKE '%{$ru}%') ORDER by date DESC LIMIT 5");

while($row = $db->get_row()){

        $row['date'] = strtotime( $row['date'] );
        $row['category'] = intval( $row['category'] );

        if( $config['allow_alt_url'] == "yes" ) {
            
            if( $config['seo_type'] == 1 OR $config['seo_type'] == 2 ) {
                
                if( $row['category'] and $config['seo_type'] == 2 ) {
                    
                    $full_link = $config['http_home_url'] . get_url( $row['category'] ) . "/" . $row['id'] . "-" . $row['alt_name'] . ".html";
                
                } else {
                    
                    $full_link = $config['http_home_url'] . $row['id'] . "-" . $row['alt_name'] . ".html";
                
                }
            
            } else {
                
                $full_link = $config['http_home_url'] . date( 'Y/m/d/', $row['date'] ) . $row['alt_name'] . ".html";
            }
        
        } else {
            
            $full_link = $config['http_home_url'] . "index.php?newsid=" . $row['id'];
        
        }

        $row['title'] = stripslashes($row['title']);

        if( dle_strlen( $row['title'], $config['charset'] ) > 43 ) $title = dle_substr( $row['title'], 0, 43, $config['charset'] ) . " ...";
        else $title = $row['title'];

        $row['short_story'] = trim (htmlspecialchars( strip_tags( stripslashes( str_replace( array("<br />", "&nbsp;"), " ", $row['short_story'] ) ) ), ENT_QUOTES, $config['charset'] ) );

        if( $user_group[$member_id['user_group']]['allow_hide'] ) $row['short_story'] = str_ireplace( "[hide]", "", str_ireplace( "[/hide]", "", $row['short_story']) );
        else $row['short_story'] = preg_replace ( "#\[hide\](.+?)\[/hide\]#is", "", $row['short_story'] );


        if( dle_strlen( $row['short_story'], $config['charset'] ) > 150 ) $description = dle_substr( $row['short_story'], 0, 150, $config['charset'] ) . " ...";
        else $description = $row['short_story'];

        $description = str_replace('&amp;', '&', $description);

        $description = preg_replace( "'\[attachment=(.*?)\]'si", "", $description );

        $buffer .= "<a href=\"" . $full_link . "\"><span class=\"searchheading\">" . stripslashes( $title ) . "</span>";

        $buffer .= "<span>".$description."</span></a>";

}

if ( !$buffer ) $buffer .= "<span class=\"notfound\">{$lang['related_not_found']}</span>";

$buffer .= '<span class="seperator"><a href="'.$config['http_home_url'].'?do=search&amp;mode=advanced&amp;subaction=search&amp;story='.$query.'">'.$lang['s_ffullstart'].'</a></span><br class="break" />';
        
@header( "Content-type: text/html; charset=" . $config['charset'] );
echo $buffer;

?>