Blade :: compileString() and embedded variables - laravel

Question

I am able to parse HTMl that uses blade template variables through the following code:
$generated = Blade::compileString($string);
ob_start();
try
{
eval($generated);
}
catch (\Exception $e)
{
ob_get_clean(); throw $e;
}
$content = ob_get_clean();
return $content;
And it works fine as long as i don't use blade variables within. Which on being parsed give me undefined variable error. How can i make sure that blade variables are available in my custom parsing method?

Answer 1

This works for me with the latest version of Laravel 5.7. Notice how I include the __env var so that functions like #include, #foreach, etc can work.
public static function renderBlade($string, $data = null)
{
if (!$data) {
$data = [];
}
$data['__env'] = app(\Illuminate\View\Factory::class);
$php = Blade::compileString($string);
$obLevel = ob_get_level();
ob_start();
extract($data, EXTR_SKIP);
try {
eval('?' . '>' . $php);
} catch (Exception $e) {
while (ob_get_level() > $obLevel) {
ob_end_clean();
}
throw $e;
} catch (Throwable $e) {
while (ob_get_level() > $obLevel) {
ob_end_clean();
}
throw new FatalThrowableError($e);
}
return ob_get_clean();
}

Answer 2

Turns out I was not passing the arguments array to the method that parses the Blade structure. My assumption was that the Mail::send method takes care of making variables available which it takes in as a second parameter. I also had to extract($args, EXTR_SKIP).
$generated = Blade::compileString($string);
ob_start(); extract($args, EXTR_SKIP)
try
{
eval($generated);
}
catch (\Exception $e)
{
ob_get_clean(); throw $e;
}
$content = ob_get_clean();
return $content;