public static UrlHelper::isValid($url, $absolute = FALSE)
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 $absolute: Whether the URL is absolute (beginning with a scheme such as "http:").
Return value
bool TRUE if the URL is in a valid format, FALSE otherwise.
File
- core/lib/Drupal/Component/Utility/UrlHelper.php, line 383
Class
- UrlHelper
- Helper class URL based methods.
Namespace
Drupal\Component\Utility
Code
public static function isValid($url, $absolute = FALSE) {
if ($absolute) {
return (bool) preg_match("
/^ # Start at the beginning of the text
(?:ftp|https?|feed):\/\/ # Look for ftp, http, https or feed schemes
(?: # Userinfo (optional) which is typically
(?:(?:[\w\.\-\+!$&'\(\)*\+,;=]|%[0-9a-f]{2})+:)* # a username or a username and password
(?:[\w\.\-\+%!$&'\(\)*\+,;=]|%[0-9a-f]{2})+@ # combination
)?
(?:
(?:[a-z0-9\-\.]|%[0-9a-f]{2})+ # A domain name or a IPv4 address
|(?:\[(?:[0-9a-f]{0,4}:)*(?:[0-9a-f]{0,4})\]) # or a well formed IPv6 address
)
(?::[0-9]+)? # Server port number (optional)
(?:[\/|\?]
(?:[\w#!:\.\?\+=&@$'~*,;\/\(\)\[\]\-]|%[0-9a-f]{2}) # The path and query (optional)
*)?
$/xi", $url);
}
else {
return (bool) preg_match("/^(?:[\w#!:\.\?\+=&@$'~*,;\/\(\)\[\]\-]|%[0-9a-f]{2})+$/i", $url);
}
}
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