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Validating a url

validating a url-87

Sometimes it's nice to be able validate field differently depending on the input itself.allows the validators object and validator options to be a function that should return the constraints/options: Validates the attributes object against the constraints.

validating a url-17validating a url-77validating a url-50validating a url-64

If the message is not a function and not a string it is simply returned as is.provides a declarative way of validating javascript objects.It is unit tested with 100% code coverage and can be considered fit for production.If the attributes objects is an HTML/DOM/j Query element Even though none of the built in validators are async it is sometimes useful to have async validations.One example would be to check if a username is already used by asking the server.is an open source component of Wrapp and is licensed under the MIT license.

There are no required external dependencies at all!

If you are running a PHP version older than 5.2 you are out of luck.

There is also a bug in PHP 5.2.13 and PHP 5.3.2 that will not allow URLs with dashes in them to validate.

If you are unsure of your PHP version you can run php -v from the command line if you have command line PHP installed, or create a PHP file with the following contents and navigate to it using your web browser: There is a lot of debate about whether using a regular expression is a good idea when doing URL validation.

If you are uncertain and looking for a guide then this may help: If you are using a version of PHP that is older than PHP 5.2: - Use the regular expression approach If you are using PHP 5.2.13 or PHP 5.3.2 and need URLs with dashes to validate: - Use the regular expression approach If you don't fall into one of the above categories: - Use the filter_var() approach Note: Some have complained that using the PHP filter_var() function is too permissive and allows URLs that should not validate.

Currently there are numerous solutions for validating URLs. the real issuse is that both methods dont check for "FILTER_FLAG_HOST_REQUIRED" which actually doesent work altough it should check ending... I have been trying to find a good solution for testing for URL's, I would not use the filter_var() for this kind of check. The only way i have found to check for them is either use regex or use the parse_url and check each section.