/**
* Clean up an input variable.
*
* @param mixed $var The input variable.
* @param int $mask Filter bit mask.
* - 1=no trim: If this flag is cleared and the input is a string,
* the string will have leading and trailing whitespace trimmed.
* - 2=allow_raw: If set, no more filtering is performed, higher bits are ignored.
* - 4=allow_html: HTML is allowed, but passed through a safe HTML filter first.
* If set, no more filtering is performed.
* - If no bits other than the 1 bit is set, a strict filter is applied.
* @param string $type The variable type. See {@link FilterInput::clean()}.
*
* @return string
*/
protected static function cleanVar($var, $mask = 0, $type = null)
{
// Static input filters for specific settings
static $noHtmlFilter = null;
static $safeHtmlFilter = null;
// convert $var in array if $type is ARRAY
if (strtolower($type) === 'array' && !is_array($var)) {
$var = array($var);
}
// If the no trim flag is not set, trim the variable
if (!($mask & static::MASK_NO_TRIM) && is_string($var)) {
$var = trim($var);
}
// Now we handle input filtering
// If the allow raw flag is set, do not modify the variable
if (!($mask & static::MASK_ALLOW_RAW)) {
if ($mask & static::MASK_ALLOW_HTML) {
// If the allow html flag is set, apply a safe html filter to the variable
if (null === $safeHtmlFilter) {
$safeHtmlFilter = FilterInput::getInstance(array(), array(), 1, 1);
}
$var = $safeHtmlFilter->clean($var, $type);
} else {
// Since no allow flags were set, we will apply the most strict filter to the variable
if (null === $noHtmlFilter) {
$noHtmlFilter = FilterInput::getInstance();
}
$var = $noHtmlFilter->clean($var, $type);
}
}
return $var;
}
/**
* Sets up the fixture, for example, opens a network connection.
* This method is called before a test is executed.
*/
protected function setUp()
{
$this->object = FilterInput::getInstance();
}
