<?php
error_reporting(-1);
mb_internal_encoding('utf-8');
 
class StudentViever
{
	private $db;
 
	public function __construct(PDO $db){
		$this->db = $db;
	}
	public function returnResult($array){
		$request = $this->db->prepare("SELECT firstName, lastName, sex, section, exams, year FROM students LIMIT ?, ?;");
		$request->execute($array);
		$result = $request->fetchAll();
		return $result;
	}
}
$SAT = new PDO('mysql:host=localhost;dbname=sat', 'root', '');
$SAT->setAttribute( PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION );
$test = new StudentViever($SAT);
$array = array(3,5);
print_r($test->returnResult($array));

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