Are there any specific PHP functions or methods that can be used in conjunction with regular expressions for dynamic URLs?

When working with dynamic URLs and regular expressions in PHP, the `preg_match()` function can be used to match a regular expression pattern against a given string. This function can be used to extract specific parts of a dynamic URL, such as parameters or values, by defining capturing groups in the regular expression pattern. By using `preg_match()` in conjunction with regular expressions, developers can effectively parse and manipulate dynamic URLs in their PHP applications.

$url = "https://example.com/user/123";
$pattern = "/\/user\/(\d+)/";
if (preg_match($pattern, $url, $matches)) {
    $userId = $matches[1];
    echo "User ID: " . $userId;
} else {
    echo "No match found.";
}