尝试类似的方法.第一行建立您的URL，其余行检查其是否包含单词"car".

Try something like this. The first row builds your URL and the rest check if it contains the word "car".

$url = 'http://' . $_SERVER['SERVER_NAME'] . $_SERVER['REQUEST_URI'];


if (strpos($url,'car') !== false) {
    echo 'Car exists.';
} else {
    echo 'No cars.';
}