Encapsulation in PHP

<?php
   
class Student {
    private $firstname;
    private $gender;
   
    public function getFirstName() {
        return $this->firstname;
    }
   
    public function setFirstName($firstname) {
        $this->firstname = $firstname;
        echo("First name is set to ".$firstname);
        echo("<br>");
    }
   
    public function getGender() {
        return $this->gender;
    }
   
    public function setGender($gender) {
        if ('Male' !== $gender and 'Female' !== $gender) {
            echo('Set gender as Male or Female for gender');
        }
   
        $this->gender = $gender;
        echo("Gender is set to ".$gender);
        echo("<br>");
    }
}
   
$student = new Student();
$student->setFirstName('Meena');
$student->setGender('Female');
   
?>

Source: geeksforgeeks.org

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