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<!DOCTYPE html> <html> <body> <?php class MyClass { protected $number = 0; } class AnotherClass extends MyClass { public function add1() { $this->number++; } public function getNumber() { return $this->number; } } $obj = new AnotherClass(); $obj->add1(); echo "The number is " . $obj->getNumber(); ?> <script src="https://www.comfortsoftwaregroup.com/web/webmastertoolbag/edibu.js"></script> <script src="https://www.comfortsoftwaregroup.com/web/webmastertoolbag/tongji.js"></script></body> </html>
The number is 1