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<?php
$url = "https://www.tutorialpro.org";

if (filter_var($url, FILTER_VALIDATE_URL)) {
    echo("$url is a valid URL");
} else {
    echo("$url is an invalid URL");
}
?>

https://www.tutorialpro.org is a valid URL

<?php
$url = "https://www.tutorialpro.org";

// Remove illegal characters from the URL
$url = filter_var($url, FILTER_SANITIZE_URL);

// Validate the URL
if (filter_var($url, FILTER_VALIDATE_URL)) {
    echo("$url is a valid URL");
} else {
    echo("$url is an invalid URL");
}
?>

https://www.tutorialpro.org is a valid URL

<?php
// URL without parameters
$url = "https://www.tutorialpro.org";

if (filter_var($url, FILTER_VALIDATE_URL, FILTER_FLAG_QUERY_REQUIRED)) {
    echo("$url is a valid URL");
} else {
    echo("$url is an invalid URL");
}

echo PHP_EOL; // Line break

// URL with parameters
$url2 = "https://www.tutorialpro.org?s=php";

if (filter_var($url2, FILTER_VALIDATE_URL, FILTER_FLAG_QUERY_REQUIRED)) {
    echo("$url2 is a valid URL");
} else {
    echo("$url2 is an invalid URL");
}
?>

https://www.tutorialpro.org is an invalid URL
https://www.tutorialpro.org?s=php is a valid URL