PHP中对汉字进行unicode编码和解码的实现方法(必看)

实例如下：

//将内容进行UNICODE编码function unicode_encode($name){  $name = iconv("UTF-8", "UCS-2", $name);  $len = strlen($name);  $str = "";  for ($i = 0; $i < $len - 1; $i = $i + 2)  {    $c = $name[$i];    $c2 = $name[$i + 1];    if (ord($c) > 0)    {  // 两个字节的文字      $str .= "u".base_convert(ord($c), 10, 16).base_convert(ord($c2), 10, 16);    }    else    {      $str .= $c2;    }  }  return $str;}$name = "MY,你大爷的";$unicode_name=unicode_encode($name);echo "<h3>".$unicode_name."</h3>";// 将UNICODE编码后的内容进行解码function unicode_decode($name){  // 转换编码，将Unicode编码转换成可以浏览的utf-8编码  $pattern = "/([w]+)|(\u([w]{4}))/i";  preg_match_all($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 $name;}echo "MY,u4f60u5927u7237u7684 -> ".unicode_decode($unicode_name);

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