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# Controller::isValid()

Controller::isValid() -- Checks whether the pages of the controller are valid

## Synopsis

    require_once 'HTML/QuickForm/Controller.php';

``bool HTML_QuickForm_Controller::isValid` ([string $pageName = `NULL`])`

## Description

This package is not documented yet.

## Parameter

string `$pageName`

  If set, check only the pages before (not including) that page

## Throws

throws no exceptions thrown

## Note

This function can not be called statically.

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