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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(); $ob->display("xyz", 23);
Output for 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0 - 8.5.1
Deprecated: Creation of dynamic property B::$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
Output for 8.4.15
/bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.33
xyz age is 23 Warning: Undefined property: B::$name in /in/NJZU8 on line 18
Output for 7.0.0 - 7.0.24, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
xyz age is 23 Notice: Undefined property: B::$name in /in/NJZU8 on line 18
Output for 7.3.32 - 7.3.33
xyz age is 23
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189.93 ms | 411 KiB | 5 Q