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<?php class A { private $name; // private variable private $age; //private variable public function __construct() { $this->name = "a"; } } class B extends A { public function display($name, $age) { $this->name2 = $name; // new name2 variable, NOT A's name $this->age2 = $age; // new age2 variable, NOT A's age echo $this->name2." age is ".$this->age2.PHP_EOL; echo $this->name; } } $ob=new B(); $ob->display("xyz", 23);
Output for git.master, git.master_jit, rfc.property-hooks
Deprecated: Creation of dynamic property B::$name2 is deprecated in /in/NJZU8 on line 15 Deprecated: Creation of dynamic property B::$age2 is deprecated in /in/NJZU8 on line 16 xyz age is 23 Warning: Undefined property: B::$name in /in/NJZU8 on line 18

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