/**
* Apply multiple functions to variable.
* @param mixed $var
* @param string $functions
* @return mixed
*/
protected function batch($var, $functions)
{
foreach (explode('|', $functions) as $function) {
if ($this->engine->doesFunctionExist($function)) {
$var = call_user_func(array($this, $function), $var);
} elseif (is_callable($function)) {
$var = call_user_func($function, $var);
} else {
throw new LogicException('The batch function could not find the "' . $function . '" function.');
}
}
return $var;
}