/**
* Returns whether the datafield contents are valid
*
* @return boolean indicating whether the datafield contents are valid
*/
public function isValid()
{
$value = trim($this->value);
if (!$value) {
return parent::isValid();
}
return parent::isValid() && preg_match('/^([1-9]\\d*)?\\n[1-9]\\d+\\n[1-9]\\d+(-\\d+)?$/', $value);
}
/**
* Returns whether the datafield contents are valid
*
* @return boolean indicating whether the datafield contents are valid
*/
public function isValid()
{
$value = trim($this->value);
if (!$value) {
return parent::isValid();
}
return parent::isValid() && strtotime($value) !== false;
}
/**
* Returns whether the datafield contents are valid
*
* @return boolean indicating whether the datafield contents are valid
*/
public function isValid()
{
$parts = explode(':', $this->value);
return parent::isValid() && $parts[0] >= 0 && $parts[0] <= 24 && $parts[1] >= 0 && $parts[1] <= 59;
}
/**
* Returns whether the datafield contents are valid
*
* @return boolean indicating whether the datafield contents are valid
*/
public function isValid()
{
return parent::isValid() && (!$this->getValue() || filter_var($this->getValue(), FILTER_VALIDATE_URL) && preg_match('%^(https?|ftp)://%', $this->getValue()));
}
/**
* Returns whether the datafield contents are valid
*
* @return boolean indicating whether the datafield contents are valid
*/
public function isValid()
{
return parent::isValid() && (!$this->getValue() || filter_var($this->getValue(), FILTER_VALIDATE_EMAIL));
}
