PHP 중국어 문자열 가로채기 PHP 가로채기 중국어 문자열 코드

/**
  @截取中文字符串 适用于GB2312编码
  @http://bbs.it-home.org
*/
function FSubstr($title,$start,$len="",$magic=true)
{
$length = 0;
if($len == "") $len = strlen($title);
//判断起始为不正确位置
if($start > 0)
{
$cnum = 0;
for($i=0;$i<$start;$i  )
{
if(ord(substr($title,$i,1)) >= 128) $cnum   ;
}
if($cnum%2 != 0) $start--;
unset($cnum);
}
if(strlen($title)<=$len) return substr($title,$start,$len);
$alen = 0;
$blen = 0;
$realnum = 0;
for($i=$start;$i{
$ctype = 0;
$cstep = 0;
$cur = substr($title,$i,1);
if($cur == "&")
{
if(substr($title,$i,4) == "<")
{
$cstep = 4;
$length  = 4;
$i  = 3;
$realnum   ;
if($magic)
{
$alen   ;
}
}
else if(substr($title,$i,4) == ">")
{
$cstep = 4;
$length  = 4;
$i  = 3;
$realnum   ;
if($magic)
{
$alen   ;
}
}
else if(substr($title,$i,5) == "&")
{
$cstep = 5;
$length  = 5;
$i  = 4;
$realnum   ;
if($magic)
{
$alen   ;
}
}
else if(substr($title,$i,6) == """)
{
$cstep = 6;
$length  = 6;
$i  = 5;
$realnum   ;
if($magic)
{
$alen   ;
}
}
else if(substr($title,$i,6) == "'")
{
$cstep = 6;
$length  = 6;
$i  = 5;
$realnum   ;
if($magic)
{
$alen   ;
}
}
else if(preg_match("/&#(d );/i",substr($title,$i,8),$match))
{
$cstep = strlen($match[0]);
$length  = strlen($match[0]);
$i  = strlen($match[0])-1;
$realnum   ;
if($magic)
{
$blen   ;
$ctype = 1;
}
}
}else{
if(ord($cur)>=128)
{
$cstep = 2;
$length  = 2;
$i  = 1;
$realnum   ;
if($magic)
{
$blen   ;
$ctype = 1;
}
}else{
$cstep = 1;
$length  =1;
$realnum   ;
if($magic)
{
$alen  ;
}
}
}
if($magic)
{
if(($blen*2 $alen) == ($len*2)) break;
if(($blen*2 $alen) == ($len*2 1))
{
if($ctype == 1)
{
$length -= $cstep;
break;
}else{
break;
}
}
}else{
if($realnum == $len) break;
}
}
unset($cur);
unset($alen);
unset($blen);
unset($realnum);
unset($ctype);
unset($cstep);
return substr($title,$start,$length);
}
?>

复制以上代码，在你的php平台中进行测试吧，多动手，水平提高会更快。 程序员之家，您学习路上的好朋友。