If not, the input is compared to the regular expression.The expressions use a pre-defined class is returned which enables the form to be submitted.Each of these values is then tested against an allowed range (days: 1 - 31; months: 1 - 12; years: 1902 - 2019; and so on).This script only confirms that the input format is correct and that each individual value falls within its allowed range.
You can find the details in Web Services using XMLHttp Request (Ajax) and related articles. It doesn't allow a space after minutes and before the am/pm example: " am" will get an invalid time. I modified the reg to the following: re = /^(\d): (\d)(:00)? The project can be found on Git Hub where you can also find our issue tracker.There is also a Travis project used for testing, a Coveralls project used to code coverage as well as the annotated source.When capturing information for insertion into a database, or use in other processing, it's important to control what the user can enter.
Otherwise you can end up with values in the database that have no relation to reality.Instead we're going to make use of Form Validation using Ajax to do some real-time checking using a server-side PHP script to get a definitive answer.