Server-side form validation

From Joomla! Documentation

Revision as of 10:40, 1 February 2013 by E-builds (Talk | contribs)

Quill icon.png
Content is Incomplete

This article or section is incomplete, which means it may be lacking information. You are welcome to assist in its completion by editing it as well. If this article or section has not been edited in several days, please consider helping complete the content.
This article was last edited by E-builds (talk| contribs) 3 years ago. (Purge)

This Article Needs Your Help

This article is tagged because it NEEDS REVIEW. You can help the Joomla! Documentation Wiki by contributing to it.
More pages that need help similar to this one are here. NOTE-If you feel the need is satistified, please remove this notice.

After submitting a form, you should validate your data. In Joomla this can be done via the JForm validate method (normally called in the controller via the model JModelForm).

Unlike client-side validation, the validation uses html attributes to do its validation. There is the attribute required ("true" or "required") which makes a field required and the attribute validate with a joomla or custom rule value.

E.g. field in a joomla form xml

<field name="email" type="text" class="inputbox" description="Fill in your E-mail" label="E-mail" required="true" validate="email" size="30" />

Validation rules

Rule Description Availability


Todo Todo (e.g. Joomla 1.5 and newer)


Todo Todo (e.g. Joomla 1.5 and newer)


Todo Todo (e.g. Joomla 1.5 and newer)


Todo Todo (e.g. Joomla 1.5 and newer)


Requires the value entered be one of the options in a field of type="list" Joomla 11.1 and newer


Todo Todo (e.g. Joomla 1.5 and newer)


Telephone number (nanpa, ITU-T T-REC-E.164 or ietf rfc4933) Joomla 11.1 and newer


Todo Todo (e.g. Joomla 1.5 and newer)


Todo Todo (e.g. Joomla 1.5 and newer)

Server- or Client-side validation?

Form validation