dipnot : postla alınan değerlere filtreleme uygulanmamıştır

post.class.php

<?php

	class method{
		public $return;
		public $values = [];

		//POST method function
		public function post($names){
			$type = gettype($names);
			if($type == 'array')
			{
				//value type array
				$count = count($names);

				foreach($names as $name){
					$name = $name;
					$this->values[] = $name;
					$this->return = true;
				}

				for ($i=0; $i < $count; $i++) { 
					if(empty($this->values[$i]))
					{
						$this->return = false;
					}
				}

			}else{

				//value type don't array
				$this->values = $names;
				if(empty($this->values))
				{
					$this->return = false;
				}else{
					$this->return = true;
				}
			}
		}
	}

?>

usage.php

<?php
	$m = new method;
        $m->post([$_POST['userid'],$_POST['password']]);
        if($m->return == true){

            extract($m->values,EXTR_PREFIX_INVALID,'var');
            echo 'Username : '.$var_0.' / Password : '.$var_1;
        }
?>