Validating a url


30-Jul-2019 10:34

The fact that the string has 0 characters is irrelevant.On the other hand, it might be true that empty strings are currently considered invalid when the field is required (I don't remember), so maybe that's a double standard.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.You can tell to use any A compatible promise implemention like this: There are already many validation libraries out there today but most of them are very tightly coupled to a language or framework.

validating a url-73

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There is also a Travis project used for testing, a Coveralls project used to code coverage as well as the annotated source.The attributes must be a plain object or a form element, things like backbone models etc are not supported.For the format of the constraints see the constraints section.Though for the datetime and date validator to you need to specify a parse and format function and for that you most likely will want to use a library, is highly recommended.

If you want to use async validation you need to use a runtime that supports Promises.They are meant to give a feeling for how to use the library and should not be considered production ready code.