PHP Decoding Unicode encoding

This article mainly introduces the PHP decoding Unicode encoding, has a certain reference value, now share to everyone, the need for friends can refer to the

function Unicode_decode ($name) {//method one $name = Str_replace ("\\\\u", "\u", $name);    $json = ' {' str ': '. $name. '} ';    $arr = Json_decode ($json, true);     if (empty ($arr)) return ';    return $arr [' str ']; Method two//convert encoding to convert Unicode encoding into a utf-8 encoding that can be browsed $pattern = '/([\w]+) |      (\\\u ([\w]{4}))/I ';      Preg_match_all ($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);                  $code 2 = Base_convert (substr ($STR, 4), 16, 10);                  $c = Chr ($code). Chr ($code 2);                  $c = Iconv (' UCS-2 ', ' UTF-8 ', $c);              $name. = $c;              } else {$name. = $str;  }}} return $name; }

here's how to find it online:
Scenario A (Stable + recommended):

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; Output: Sina Weibo

Let's wrap up the above scenario a (Plan a stable + upgrade + recommended) 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;  }  } Call $name = ' \u65b0\u6d6a\u5fae\u535a '; $data = Helper_tool::unicodedecode ($name); Output Sina Weibo

Scenario B (Recommended):

<?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); Output: Sina Weibo