Controller

<?php

class Controller
{
    private $model;

    public function __construct($model){
        $this->model = $model;
    }

    public function clicked() {
        $this->model->testing = "Updated";
    }


	public function arts(){
		$page = isset($_GET['page2']) ? (int)$_GET['page2'] : 1;
		$perPage = isset($_GET['per-page']) && $_GET['per-page'] <= 6 ? (int)$_GET['per-page'] : 6;
				$nextpage = (int)$_GET['page2'] + 1;
				$lastpage = (int)$_GET['page2'] - 1;
				$start = ($page > 1) ? ($page * $perPage) - $perPage : 0;
				$obj = new \stdClass();
				$obj->start = $start;
				$obj->pp = $perPage;
				/*$output = */$this->model->getArticles(json_encode($obj));
				//return $output;

	}
	 public function maincon() {
        $id = $_GET['id'];
		$newid = new \stdClass();
		$newid->id = $id;
		/*$output =*/ $this->model->mainart(json_encode($newid));
		//return $output;
    }
	public function getuser() {
		if(!empty($_SESSION['Username'])){
        $login = $_SESSION['Username'];
		$user = new \stdClass();
		$user->username = $login;
		/*$output =*/$this->model->getuser(json_encode($user));
		//return $output;
		}
    }


	public function insertComments(){
		$review = htmlspecialchars($_POST['comment']);
		$obj = new \stdClass();
		$id = $_GET['id'];
		$obj->username = $_SESSION['Username'];
		$obj->id = $id;
		$obj->review = $review;
        $this->model->insertComments(json_encode($obj));

	}

	public function login(){
		$output = '';
		if(isset($_POST['button'])){
		if(isset($_POST['Username']) && !empty($_POST['Username'])){
			$username = $_POST['Username'];
			$email = $_POST['Email'];
			$password = $_POST['Password'];

			if(isset($_POST['Password']) && !empty($_POST['Password'])){
			$objj->pass = $enc_pass;
			$objj->password = $password;
			$objj->email = $email;
			$objj->username = $username;
            $this->model->login(json_encode($objj));
			}
			else{
		$output.= '<div class="alert alert-danger  alert-dismissible fade in">';
		$output.= '<a href="#" class="close" data-dismiss="alert" aria-label="close">&times;</a>';
		$output.= '<i class="fas fa-exclamation-circle"></i> <strong>  Error:</strong> Please Enter Password.';
		$output.= '</div>';
		return $output;

				}
		}

	else{
		$output.= '<div class="alert alert-danger  alert-dismissible fade in">';
		$output.= '<a href="#" class="close" data-dismiss="alert" aria-label="close">&times;</a>';
		$output.= '<i class="fas fa-exclamation-circle"></i> <strong>  Error:</strong> Please  Enter Username and Password.';
		$output.= '</div>';

		return $output;

	}
	}
	}

	public function reg(){
	if(isset($_POST['button'])){
	if(isset($_POST['Username']) && isset($_POST['Email']) && isset($_POST['Password'])&& isset($_POST['Fname']) && isset($_POST['Lname']) && isset($_POST['CPassword']) && $_POST['g-recaptcha-response']!=""){
		$secret = '6LfEL3QUAAAAAD8ddCdGkR3gdcD9UC8SX03SRZz6';
		$verifyResponse = file_get_contents('https://www.google.com/recaptcha/api/siteverify?secret='.$secret.'&response='.$_POST['g-recaptcha-response']);
		$responseData = json_decode($verifyResponse);
		if($responseData->success){
		if(!empty($_POST['Username']) && !empty($_POST['Email']) && !empty($_POST['Password'])&& !empty($_POST['Fname']) && !empty($_POST['Lname']) && !empty($_POST['CPassword'])){
		if($_POST['CPassword'] == $_POST['Password']){

		$re = '/\A(?=[\x20-\x7E]*?[A-Z])(?=[\x20-\x7E]*?[a-z])(?=[\x20-\x7E]*?[0-9])[\x20-\x7E]{6,}\z/';

		if(preg_match($re, $_POST['Password'])) {





		$errorMessage = 'ERROR: Unallowed character';
		$Fname = $_POST['Fname'];
		$Lname = $_POST['Lname'];
		$username = $_POST['Username'];
			$email = $_POST['Email'];
			$password = $_POST['Password'];
			$ecn_pass = password_hash($_POST['Password'],PASSWORD_DEFAULT,['cost' => 12]);
			if(strlen($password) > 8){
				/*
			function pkcs7_pad($data, $size)
			{
				$length = $size - strlen($data) % $size;
				return $data . str_repeat(chr($length), $length);
			}
*/


			/*$enc_pass = openssl_encrypt(
				pkcs7_pad($password, 16),
				'AES-256-CBC',
				$encryption_key,
				0,
				$iv
			);*/
			$obj->pass = $ecn_pass;
			$obj->email = $email;
			$obj->username = $username;
			$obj->fname = $Fname;
			$obj->lname = $Lname;
			$this->model->reg(json_encode($obj));

	}
	else{
		//echo "<h1 style = 'color: red;'>Minimum password length is 8</h1>";
		$output2.= '<div class="alert alert-danger">';
		$output2.= ' <strong>Error:</strong> Minimum password length is 8.';
		$output2.= '</div>';
		return $output2;
	}
	}
	else{
		//echo "<h1 style = 'color: red;'>at least 8 characters of uppercase,lowercase and numbers</h1>";
		$output2.= '<div class="alert alert-danger">';
		$output2.= ' <strong>Error:</strong> at least 8 characters of uppercase,lowercase and numbers.';
		$output2.= '</div>';
		return $output2;
	}


		}
	else{
		//echo "<h1 style = 'color: red;'>Password Confirmation Incorrect</h1>";
		$output2.= '<div class="alert alert-danger">';
		$output2.= ' <strong>Error:</strong> Password Confirmation Incorrect.';
		$output2.= '</div>';
		return $output2;
    }
	}
	else{
		//echo "<h1 style = 'color: red;'>PLEASE FILL IN ALL FIELDS</h1>";
		$output2.='<div class="alert alert-danger">';
		$output2.=' <strong>Error:</strong> PLEASE FILL IN ALL FIELDS.';
		$output2.='</div>';
		return $output2;
	}
	}
	}
	else{
		$output2.= '<div class="alert alert-danger  alert-dismissible fade in">';
		$output2.= '<a href="#" class="close" data-dismiss="alert" aria-label="close">&times;</a>';
		$output2.= ' <strong>Error:</strong> Please Complete Captcha.';
		$output2.= '</div>';
		return $output2;
	}

	}
	else{
		echo "";
	}
	}

	public function pagination(){
				$page = isset($_GET['page2']) ? (int)$_GET['page2'] : 1;
				$perPage = isset($_GET['per-page']) && $_GET['per-page'] <= 6 ? (int)$_GET['per-page'] : 6;
				$nextpage = (int)$_GET['page2'] + 1;
				$lastpage = (int)$_GET['page2'] - 1;
				$start = ($page > 1) ? ($page * $perPage) - $perPage : 0;
				$obj = new \stdClass();
				$obj->start = $start;
				$obj->pp = $perPage;
				$getpages = $this->model->getPages(json_encode($obj));
				$pages = json_decode($getpages);
				if((int)$_GET['page2'] <= 1){
				$output .= "<li class='page-item'><a class='page-link' href=#>Previous</a></li>";
				}
				else{
					$output .= "<li class='page-item'><a class='page-link' href=?page2=".$lastpage."&per-page=".$perPage.">Previous</a></li>";
				}
				for($x = 1; $x <= $pages; $x++ ){
				if((int)$_GET['page2'] == $x){
					$test = 'active';
					$css = "<span class='sr-only'>(current)</span>";
				}
				else{
					$test = 'page-item';
					$css = "";

				}

				 $output .= "<li class=".$test."><a class='page-link' href=?page2=".$x."&per-page=".$perPage.">".$x."".$css."</a></li>";
				}
			if((int)$_GET['page2'] >= $pages){
				$output .= "<li class='page-item'><a class='page-link' href=#>Next</a></li>";
			}
			else{
			$output .= "<li class='page-item'><a class='page-link' href=?page2=".$nextpage."&per-page=".$perPage.">Next</a></li>";
			}
			return $output;
	}

	public function logout(){
		session_destroy();
		header("Location: https://mayar.abertay.ac.uk/~1800854/MVC/index.php?page=views&model=getArticles");
		die();
	}
}