``` $image = $data\['img'\]; $imageName = "25220\_" . date("His", time()) . "\_" . rand(1111, 9999) . '.png'; if (strstr($image, ",")) { $image = explode(',', $image); $image = $image\[1\]; } $r = file\_put\_contents("./public/" . $imageName, base64\_decode($image)); //返回的是字节数 ```