BlogCI / application / config / form_validation.php

<?php

$config = array(
    'comentario' => array(
        array(
            'field' => 'form_comentario_nome',
            'label' => 'nome',
            'rules' => 'trim|required|min_length[3]|max_length[20]'
        ),
        array(
            'field' => 'form_comentario_email_autor',
            'label' => 'e-mail',
            'rules' => 'trim|required|max_length[100]|valid_email'
        ),
        array(
            'field' => 'form_comentario_texto',
            'label' => 'comentário',
            'rules' => 'trim|required|min_length[12]'
        ),
        array(
            'field' => 'form_comentario_captcha',
            'label' => 'código de segurança',
            'rules' => 'trim|required|callback__callback_validar_captcha'
        )
    ),
    'admin/post' => array(
        array(
            'field' => 'form_post_id',
            'label' => 'id',
            'rules' => ''
        ),
        array(
            'field' => 'form_post_titulo',
            'label' => 'título',
            'rules' => 'trim|required|max_length[60]'
        ),
        array(
            'field' => 'form_post_autor',
            'label' => 'autor',
            'rules' => 'trim|required|max_length[20]'
        ),
        array(
            'field' => 'form_post_texto',
            'label' => 'texto',
            'rules' => 'trim|required|min_length[10]'
        ),
        array(
            'field' => 'form_post_tags',
            'label' => 'tags',
            'rules' => 'trim|max_length[100]'
        )
    )
);
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