I followed this guide on how to pass a parameter through the URL in RsForm, and with it I tried to define default value of one box. Even though I followed that tutorial, my browser accepts the url but doesn't fill out the field.

example.com/cs?option=com_rsform&formId=13form[vyberte_vami_zvoleny_pobyt][email protected]

(BTW, the first box should get the parameter [email protected])

  • You're missing an ampersand (&) in the url currently: example.com/cs?option=com_rsform&formId=13&form[vyberte_vami_zvoleny_pobyt][email protected]. Are you sure that this all matches exactly? Oct 26, 2014 at 3:21

2 Answers 2


Your URL is wrong, it should only contain one question mark (?option=com_rsform). Subsequent URL parameters must start with &.

Try http://www.trebonlazne.cz/cs?option=com_rsform&formId=13&form[vyberte_vami_zvoleny_pobyt][email protected], it should work.

From the tutorial you mentioned:

IMPORTANT: If the parameter you are adding is the first one existing in the URL (when using SEF URLs), you need to add it using the ? character instead of &, as in the following example: http://www.mywebsite.com/index.php/form?form[email][email protected]


This is an example I have used for a hotel booking engine

example.com/page.jsp?HotelID={HotelID:value}&rateplanid={rateplan:value}&Rooms=1&DateIn={Check In:value}&Length={Nights:value}&Adults={Adults:value}&Children={Children:value}&submit=Submit

In this case, we use {} instead of [].

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