PHP解碼unicode編碼

這篇文章主要介紹了PHP解碼unicode編碼 ，有著一定的參考價值，現在分享給大家，有需要的朋友可以參考一下

function unicode_decode($name)  {      //方法一    $name = str_replace("\\\\u","\u",$name);    $json = '{"str":"'.$name.'"}';    $arr = json_decode($json,true);    if(empty($arr)) return '';     return $arr['str'];    //方法二    // 轉換編碼，將Unicode編碼轉換成可以瀏覽的utf-8編碼      $pattern = '/([\w]+)|(\\\u([\w]{4}))/i';      preg_match_all($pattern, $name, $matches);      if (!empty($matches))      {          $name = '';          for ($j = 0; $j < count($matches[0]); $j++)          {              $str = $matches[0][$j];              if (strpos($str, '\\u') === 0)              {                  $code = base_convert(substr($str, 2, 2), 16, 10);                  $code2 = base_convert(substr($str, 4), 16, 10);                  $c = chr($code).chr($code2);                  $c = iconv('UCS-2', 'UTF-8', $c);                  $name .= $c;              }              else              {                  $name .= $str;              }          }      }      return $name;  }

以下是網上找的方法：
方案A(穩定版+推薦)：

function replace_unicode_escape_sequence($match) {  return mb_convert_encoding(pack('H*', $match[1]), 'UTF-8', 'UCS-2BE');}$name = '\u65b0\u6d6a\u5fae\u535a';$str = preg_replace_callback('/\\\\u([0-9a-f]{4})/i', 'replace_unicode_escape_sequence', $name);echo $str; //輸出： 新浪微博

//咱將上述方案A給封裝起來~~~(方案A穩定版+升級+推薦)class Helper_Tool{  static function unicodeDecode($data)  {      function replace_unicode_escape_sequence($match) {      return mb_convert_encoding(pack('H*', $match[1]), 'UTF-8', 'UCS-2BE');    }      $rs = preg_replace_callback('/\\\\u([0-9a-f]{4})/i', 'replace_unicode_escape_sequence', $data);    return $rs;  }  }//調用$name = '\u65b0\u6d6a\u5fae\u535a';$data = Helper_Tool::unicodeDecode($name); //輸出新浪微博

方案B(次推薦)：

<?phpfunction unicodeDecode($name){  $json = '{"str":"'.$name.'"}';  $arr = json_decode($json,true);  if(empty($arr)) return '';   return $arr['str'];}$name = '\u65b0\u6d6a\u5fae\u535a';echo unicodeDecode($name); //輸出： 新浪微博