public function coordinate_switch($a,$b){//百度轉騰訊坐標轉換  $x = (double)$b - 0.0065;  $y = (double)$a - 0.006;  $x_pi = 3.14159265358979324;  $z = sqrt($x * $x+$y * $y) - 0.00002 * sin($y * $x_pi);  $theta = atan2($y,$x) - 0.000003 * cos($x*$x_pi);  $gb = number_format($z * cos($theta),15);  $ga = number_format($z * sin($theta),15);  return ['Latitude'=>$ga,'Longitude'=>$gb];}public function coordinate_switchf($a,$b){//騰訊轉百度坐標轉換  $x = (double)$b ;  $y = (double)$a;  $x_pi = 3.14159265358979324;  $z = sqrt($x * $x+$y * $y) + 0.00002 * sin($y * $x_pi);  $theta = atan2($y,$x) + 0.000003 * cos($x*$x_pi);  $gb = number_format($z * cos($theta) + 0.0065,6);  $ga = number_format($z * sin($theta) + 0.006,6);  return ['Latitude'=>$ga,'Longitude'=>$gb];}