I have made form in zend and add validation to it as below
$firstname = $this->createElement('text','firstname');
$firstname->setLabel('First Name:')
->setRequired(true);
Validation is working and giving error message-> 'Value is required and can't be empty.'
But I want that It must say -> 'First Name is required and can't be empty.'
I don't know how to do it. Please help.