How to intercept Chinese characters by characters without garbled characters in php_PHP tutorial

How to intercept Chinese characters by characters without garbled characters in php,

This article describes the method of intercepting Chinese characters by characters without garbled characters in php. Share it with everyone for your reference. The specific implementation method is as follows:

<&#63;php
//$str 待截取的字符串
//$len 截取的字符个数
//$chars 已经截取的字符数
//$res  保存的字符串
//$chars 保存已经截取的字符串个数
//$offset 截取的偏移量
//$length 字符串的字节数
//若$len>$str的字符个数，造成无谓的while循环，($offset<$length限定)
function utf8sub($str,$len){
  if($len<=0){
    return ;
  }
  $res="";
  $offset=0;
  $chars=0;
  $length=strlen($str);
  while($chars<$len && $offset<$length){
    $hign=decbin(ord(substr($str,$offset,1)));
      if(strlen($hign)<8){
        $count=1;
      }elseif(substr($hign,0,3)=="110"){
        $count=2;
      }elseif(substr($hign,0,4)=="1110"){
        $count=3;
      }elseif(substr($hign,0,5)=="11110"){
        $count=4;
      }elseif(substr($hign,0,6)=="111110"){
        $count=5;
      }elseif(substr($hign,0,7)=="1111110"){
        $count=6;
      }
    $res.=substr($str,$offset,$count);
    $offset+=$count;
    $chars+=1;
  }
  return $res;
}
function utf8sub1($str,$len){
  $chars=0;
  $res="";
  $offset=0;
  $length=strlen($str);
  while($chars<$len && $offset<$length){
    $hign=decbin(ord(substr($str,$offset,1)));
    if(strlen($hign)<8){
      $count=1;
    }elseif($hign & "11100000"=="11000000"){
      $count=2;
    }elseif($hign & "11110000"=="11100000"){
      $count=3;
    }elseif($hign & "11111000"=="11110000"){
      $count=4;
    }elseif($hign & "11111100"=="11111000"){
      $count=5;
    }elseif($hign & "11111110"=="11111100"){
      $count=6;
    }
    $res.=substr($str,$offset,$count);
    $chars++;
    $offset+=$count;
  }
  return $res;
}
$a="中华ah人民hdj";
echo utf8sub($a,5);
&#63;>

I hope this article will be helpful to everyone’s PHP programming design.

http://www.bkjia.com/PHPjc/974669.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/974669.htmlTechArticleHow to intercept Chinese characters by characters without garbled characters in php. This article describes the method of intercepting Chinese characters by characters without garbled characters in php. Share it with everyone for your reference. The specific implementation method is as follows: php//$s...