php截取字符串函数,支持中文汉字无乱码
用php substr函数截取字符串一部分,但是字符串中含有汉字时,结果就出现了乱码,导致网页标签混乱,显示不完整。
找到函数一个,分享一下。
$tmpstr = “”;
$strlen = $start + $len;
for($i = 0; $i if(ord(substr($str, $i, 1)) > 0xa0) {
$tmpstr .= substr($str, $i, 2);
$i++;
} else
$tmpstr .= substr($str, $i, 1);
}
return $tmpstr;
}
* 可以避免乱码的截取汉字
* 参数 $str 为字符串,$start 为开始字符,$len 结束字符
* 返回截取后的字符

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