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1<?php
2class Calculator {
3 public $name = "Basic Calc";
4 public function add($a, $b) {
5 return $a + $b;
6 }
7 public function subtract($a, $b) {
8 return $a - $b;
9 }
10}
11$calc = new Calculator();
12echo $calc->name . "\n";
13echo $calc->add(5, 3) . "\n";
14echo $calc->subtract(10, 4);
15?>
1<?php
2class Calculator {
3 public $name = "Advanced Calc";
4 public function add($a, $b, $c = 0) {
5 return $a + $b + $c;
6 }
7 public function subtract($a, $b) {
8 return $a - $b;
9 }
10 public function multiply($a, $b) {
11 return $a * $b;
12 }
13}
14$calc = new Calculator();
15echo $calc->name . "\n";
16echo $calc->add(5, 3, 2) . "\n";
17echo $calc->subtract(10, 4);
18?>

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