function grab()
{
$value = $this->grab_value();
if (!$this->userland_changeable && $value !== NULL && $value != $this->get() && preg_replace('/\\s+/', '', $value) != preg_replace('/\\s+/', '', $this->get())) {
trigger_error('hidden element (' . $this->name . ') value changed in userland (' . $value . ' != ' . $this->get() . '). If you wish to permit userland changes to this field, set the userland_changeable param.');
}
parent::grab();
}
function grab()
{
parent::grab();
$length = strlen($this->value);
$length_limits = array('tinytext' => 255, 'text' => 65535, 'mediumtext' => 16777215);
if (!empty($this->db_type) && array_key_exists($this->db_type, $length_limits)) {
if ($length > $length_limits[$this->db_type]) {
$name_to_display = trim($this->display_name);
if (empty($name_to_display)) {
$name_to_display = prettify_string($this->name);
}
$this->set_error('There is more text in ' . $name_to_display . ' than can be stored; this field can hold no more than ' . $length_limits[$this->db_type] . ' characters.');
}
}
}