/**
* Generate a continuous uniform distribution.
*
* @param float $lower Lower bound value.
* @param float $upper Upper bound value.
* @return float
*/
public function getFloat($lower = null, $upper = null)
{
if (null === $lower) {
$lower = $this->_parameters->getParameter('float.min');
}
/*
$lower = true === S_32\BITS
? -3.4028235e38 + 1
: -1.7976931348623157e308 + 1;
*/
if (null === $upper) {
$upper = $this->_parameters->getParameter('float.max');
}
/*
$upper = true === S_32\BITS
? 3.4028235e38 - 1
: 1.7976931348623157e308 - 1;
*/
if ($lower > $upper) {
throw new Math\Exception('Unexpected values, float %f should be lower than %f', 2, [$lower, $upper]);
}
return $this->_getFloat($lower, $upper);
}
/**
* Make an ID according to frontend options.
* We privilage _makeId to built suffixe of ID.
* As an idenfier shoud be unique, we add environments variables values. In
* this way, the identifier represents the current state of application.
*
* @param string $id Identifier.
* @return string
* @throws \Hoa\Cache\Exception
*/
protected function makeId($id = null)
{
$_id = $id;
if (true === $this->_parameters->getParameter('make_id_with.cookie') && isset($_COOKIE)) {
$_id .= serialize($this->ksort($_COOKIE));
}
if (true === $this->_parameters->getParameter('make_id_with.files') && isset($_FILES)) {
$_id .= serialize($this->ksort($_FILES));
}
if (true === $this->_parameters->getParameter('make_id_with.get') && isset($_GET)) {
$_id .= serialize($this->ksort($_GET));
}
if (true === $this->_parameters->getParameter('make_id_with.post') && isset($_POST)) {
$_id .= serialize($this->ksort($_POST));
}
if (true === $this->_parameters->getParameter('make_id_with.server') && isset($_SERVER)) {
$_id .= serialize($this->ksort($_SERVER));
}
if (true === $this->_parameters->getParameter('make_id_with.session') && isset($_SESSION)) {
$_id .= serialize($this->ksort($_SESSION));
}
return self::$_id[$id] = md5($id . $_id);
}
