JFIFxxC      C  " }!1AQa"q2#BR$3br %&'()*456789:CDEFGHIJSTUVWXYZcdefghijstuvwxyz w!1AQaq"2B #3Rbrregexes = $regexes; } protected static function tryMatch(array $regexes, string $userAgent): array { foreach ($regexes as $regex) { if (preg_match($regex['regex'], $userAgent, $matches)) { $defaults = [ 1 => 'Other', 2 => null, 3 => null, 4 => null, 5 => null, ]; return [$regex, $matches + $defaults]; } } return [null, null]; } protected static function multiReplace(array $regex, string $key, ?string $default, array $matches): ?string { if (!isset($regex[$key])) { return self::emptyStringToNull($default); } $replacement = preg_replace_callback( '|\$(?P\d)|', static function ($m) use ($matches) { return $matches[$m['key']] ?? ''; }, $regex[$key] ); return self::emptyStringToNull($replacement); } private static function emptyStringToNull(?string $string): ?string { $string = trim($string ?? ''); return $string === '' ? null : $string; } }