Detect if the user is on a laptop or mobile device using browser checks.

custom.php

<?php
							function getBrowser()
							{
								$user_agent = $_SERVER['HTTP_USER_AGENT'];
								$browser = "N/A";

								$browsers = [
									'/msie/i' => 'Internet explorer',
									'/firefox/i' => 'Firefox',
									'/safari/i' => 'Safari',
									'/chrome/i' => 'Chrome',
									'/edge/i' => 'Edge',
									'/opera/i' => 'Opera',
									'/mobile/i' => 'Mobile browser',
								];

								foreach ($browsers as $regex => $value) {
									if (preg_match($regex, $user_agent)) {
										$browser = $value;
									}
								}

								return $browser;
							}

							$scbrowser = getBrowser();

							if ($scbrowser == 'Safari') { ?>
							safari
							<?php	} else { ?>
							others
							<?php	} ?>