PHP json_encode中文不转码 base64链接访问处理

function json_encodes($str){$code = json_encode($str);  return preg_replace("#\\\u([0-9a-f]{4})#ie", "iconv('UCS-2', 'UTF-8', pack('H4', '\\1'))", $code);  }function safe_b64encode($string) {$data = base64_encode($string);$data = str_replace(array('+','/','='),array('-','_',''),$data);return $data;}//解析特殊字符function safe_b64decode($string) {$data = str_replace(array('-','_'),array('+','/'),$string);$mod4 = strlen($data)%4;if ($mod4) {$data .= substr('====', $mod4);}return base64_decode($data);}