//Monkey's 二元分词
function sp_str($str) {
//所有汉字后添加ASCII的0字符,此法是为了排除特殊中文拆分错误的问题
$str=preg_replace("/[\x80-\xff]{2}/","\\0".chr(0x00),$str);
//拆分的分割符
$search = array(",", "/", "\\", ".", ";", ":", "\"", "!", "~", "`", "^", "(", ")", "?", "-", "\t", "\n", "'", "<", ">", "\r", "\r\n", "$", "&", "%", "#", "@", "+", "=", "{", "}", "[", "]", "：", "）", "（", "．", "。", "，", "！", "；", "“", "”", "‘", "’", "［", "］", "、", "—", "　", "《", "》", "－", "…", "【", "】",);
//替换所有的分割符为空格
$str = str_replace($search,' ',$str);
//用正则匹配半角单个字符或者全角单个字符,存入数组$ar
preg_match_all("/[\x80-\xff]?./",$str,$ar);$ar=$ar[0];
//去掉$ar中ASCII为0字符的项目
for ($i=0;$i<count($ar);$i++) if ($ar[$i]!=chr(0x00)) $ar_new[]=$ar[$i];
$ar=$ar_new;unset($ar_new);$oldsw=0;
 
//把连续的半角存成一个数组下标,或者全角的每2个字符存成一个数组的下标
for ($ar_str='',$i=0;$i<count($ar);$i++) {
 $sw=strlen($ar[$i]);
 if ($i>0 and $sw!=$oldsw) $ar_str.=" ";
 if ($sw==1) $ar_str.=$ar[$i];
 else
 if (strlen($ar[$i+1])==2) $ar_str.=$ar[$i].$ar[$i+1].' ';
 elseif ($oldsw==1 or $oldsw==0) $ar_str.=$ar[$i];
 $oldsw=$sw;
}
//去掉连续的空格
$ar_str=trim(preg_replace("# {1,}#i"," ",$ar_str));//$ar_str = "Monkey s 二元 元分 分词" www.phperz.com
//返回拆分后的结果
return explode(' ',$ar_str);
}

function quweima($str){
 if(preg_match("/^[a-z0-9 ]+$/i",$str)){
 return $str;
 }else{
 $str1 = substr($str,0,2);
 //echo $str1;
 $str_qwm = sprintf("%02d%02d",ord($str[0])-160,ord($str[1])-160);
 $str2 = substr($str,2,4);
 //echo $str2;
 $str_qwm .= sprintf("%02d%02d",ord($str[0])-160,ord($str[1])-160);
 return $str_qwm;
 }
}

$query = "SELECT title, MATCH( title_ft ) AGAINST( '$title_ft' IN BOOLEAN MODE ) AS score
FROM info
WHERE MATCH( title_ft ) AGAINST( '$title_ft' IN BOOLEAN MODE )
ORDER BY score DESC ";