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Object-Oriented Programming in PHP

Solution Review: Access Modifiers

Explore how to implement and manage PHP access modifiers in object-oriented programming. Understand using private properties with public getter and setter methods, and test these concepts by building a User class that securely handles data access.

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Solution

PHP
<?php 
class User {
  private $firstName;
  public function setFirstName($str){
    $this -> firstName = $str;
  }
  public function getFirstName(){
    return $this -> firstName; 
  }
}
function test()
{
  $user1 = new User();
  $user1 -> setFirstName("Joe");
  return $user1 -> getFirstName();
}
echo test();
?>

Explanation

  • Line 2: We write the User class with the $firstName private property.
  • Line 5: We add the public setter method
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