Intercepting strings in php supports utf-8_PHP tutorial

Intercept string
$string="I turned one year older in April 2006!";
echo substr($string,1)."...";
//Intercept string
function SubstrGB($in,$num)
{
$pos=0;
$out="";
while($pos {
$c=substr($in,$pos,1);
if($c=="n") break;
if(ord($c) >128)
{
$out.=$c;
$pos++;
$c=substr($in,$pos,1);
$out.=$c ;
}
else
{
$out.=$c;
}
$pos++;
if($pos>=$num) break;
}
return $out;
}
echo SubstrGB($string,8);
?>
/***************************************************** ***********************
*             cut_string.php
*                                                                                          --------------
* Date : Jul 16, 2005
* Copyright : none
* Mail :
*
* Function: intercept Chinese characters .
*
*
****************************************** *************************************/
function cut_str($string, $sublen, $start = 0, $code = 'UTF-8')
{
if($code == 'UTF-8')
{
$pa = "/[x01-x7f]|[xc2-xdf][x80-xbf]|xe0[xa0-xbf][x80-xbf]|[xe1-xef][x80-xbf][x80-xbf]| xf0[x90-xbf][x80-xbf][x80-xbf]|[xf1-xf7][x80-xbf][x80-xbf][x80-xbf]/";
preg_match_all($pa, $string , $t_string);
if(count($t_string[0]) - $start > $sublen) return join('', array_slice($t_string[0], $start, $sublen)).". ..";
return join('', array_slice($t_string[0], $start, $sublen));
}
else
{
$start = $start* 2;
$sublen = $sublen*2;
$strlen = strlen($string);
$tmpstr = '';
for($i=0; $i<$strlen; $i++)
{
if($i>=$start && $i<($start+$sublen))
{
if(ord(substr($string, $i, 1) )>129) $tmpstr.= substr($string, $i, 2);
    else $tmpstr.= substr($string, $i, 1); substr($string, $i, 1))>129) $i++; return $tmpstr;
}
}
echo "
".cut_str($string,8,$start=0,$code='sdf');
?>




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truehttp: //www.bkjia.com/PHPjc/317768.htmlTechArticleIntercept string?php $string="In April 2006, I became one year older!"; echosubstr ($string,1)."..."; //Intercept string functionSubstrGB($in,$num) { $pos=0; $out=""; while($posstrlen($in...