这里提供一款支持中文汉字与英文混合在一起的截取功能,包括对html标签等进来处理,下面我们来看看这款截取函数吧。
中英文字符串截取函数(包括html)
function get_word($string, $length, $dot = '..',$charset='gbk') {
if(strlen($string) return $string;
}
$string = str_replace(array(' ',' ', '&', '"', ''), array('','','&', '"', ''), $string);
$strcut = '';
if(strtolower($charset) == 'utf-8') {
$n = $tn = $noc = 0;
while($n $t = ord($string[$n]);
if($t == 9 || $t == 10 || (32 $tn = 1; $n++; $noc++;
} elseif(194 $tn = 2; $n += 2; $noc += 2;
} elseif(224 $tn = 3; $n += 3; $noc += 2;
} elseif(240 $tn = 4; $n += 4; $noc += 2;
} elseif(248 $tn = 5; $n += 5; $noc += 2;
} elseif($t == 252 || $t == 253) {
$tn = 6; $n += 6; $noc += 2;
} else {
$n++;
}
if($noc >= $length) {
break;
}
}
if($noc > $length) {
$n -= $tn;
}
$strcut = substr($string, 0, $n);
} else {
for($i = 0; $i $strcut .= ord($string[$i]) > 127 ? $string[$i].$string[++$i] : $string[$i];
}
}
return $strcut.$dot;
}
$str = "欢迎 visit 简明 nowamagic";
$str_result = get_word($str, 12);
echo $str_result;

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