function UrlHelper::isValid

Verifies the syntax of the given URL.

This function should only be used on actual URLs. It should not be used for Drupal menu paths, which can contain arbitrary characters. Valid values per RFC 3986.

Parameters

string $url: The URL to verify.

bool $absolute: Whether the URL is absolute (beginning with a scheme such as "http:").

Return value

bool TRUE if the URL is in a valid format, FALSE otherwise.

5 calls to UrlHelper::isValid()

DbLogController::createLink in core/modules/dblog/src/Controller/DbLogController.php

Creates a Link object if the provided URI is valid.

Endpoint::__construct in core/modules/media/src/OEmbed/Endpoint.php

Endpoint constructor.

PathValidator::getUrl in core/lib/Drupal/Core/Path/PathValidator.php

Helper for getUrlIfValid() and getUrlIfValidWithoutAccessCheck().

Provider::__construct in core/modules/media/src/OEmbed/Provider.php

Provider constructor.

Url::validateUrl in core/lib/Drupal/Core/Render/Element/Url.php

Form element validation handler for #type 'url'.

File

core/lib/Drupal/Component/Utility/UrlHelper.php, line 444

Class

UrlHelper

Helper class URL based methods.

Namespace

Drupal\Component\Utility

Code

public static function isValid($url, $absolute = FALSE) {
    if ($absolute) {
        return (bool) preg_match("\n        /^                                                      # Start at the beginning of the text\n        (?:ftp|https?|feed):\\/\\/                                # Look for ftp, http, https or feed schemes\n        (?:                                                     # Userinfo (optional) which is typically\n          (?:(?:[\\w\\.\\-\\+!\$&'\\(\\)*\\+,;=]|%[0-9a-f]{2})+:)*      # a username or a username and password\n          (?:[\\w\\.\\-\\+%!\$&'\\(\\)*\\+,;=]|%[0-9a-f]{2})+@          # combination\n        )?\n        (?:\n          (?:[a-z0-9\\-\\.]|%[0-9a-f]{2})+                        # A domain name or a IPv4 address\n          |(?:\\[(?:[0-9a-f]{0,4}:)*(?:[0-9a-f]{0,4})\\])         # or a well formed IPv6 address\n        )\n        (?::[0-9]+)?                                            # Server port number (optional)\n        (?:[\\/|\\?]\n          (?:[\\w#!:\\.\\?\\+=&@\$'~*,;\\/\\(\\)\\[\\]\\-]|%[0-9a-f]{2})   # The path and query (optional)\n        *)?\n      \$/xi", $url);
    }
    else {
        return (bool) preg_match("/^(?:[\\w#!:\\.\\?\\+=&@\$'~*,;\\/\\(\\)\\[\\]\\-]|%[0-9a-f]{2})+\$/i", $url);
    }
}