new function: needInputVariables
new function: needInputVariables

example usage: 
extract ( needInputVariables ( array (
		'api_token' => 'string',
		'email_to' => 'email',
		'subject' => 'string(1,)',
		'body_html' => 'string(1,)' 
) ) );
divinity76/hhb_.inc.php