php 截取中文(utf8版)
function subtitle($string,$length) {
?if (mb_strwidth($string, 'utf8') return $string;
?}else{
$i = 0;
$len_word = 0;
while ($len_word ?$stringtmp = substr($string,$i,1);
?if ( ord($stringtmp) >=224 ){
$stringtmp = substr($string,$i,3);
$i = $i + 3;
$len_word = $len_word + 2;
?}elseif( ord($stringtmp) >=192 ){
$stringtmp = substr($string,$i,2);
$i = $i + 2;
$len_word = $len_word + 2;
?}else{
$i = $i + 1;
$len_word = $len_word + 1;
?}
?$stringlast[] = $stringtmp;
}
/* raywang edit it for dirk for (es/index.php)*/
if (is_array($stringlast) && !empty($stringlast)){
?$stringlast = implode(,$stringlast);
?$stringlast .= ...;
}
return $stringlast;
?}
}