3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { public static $classStatic = 1; public function test() { static $methodStatic = 1; return $methodStatic++; } } class Bar extends Foo {} $foo1 = new Foo; $foo2 = new Foo; $bar = new Bar; var_dump( $foo1->test(), $foo2->test(), $bar->test() ); Foo::$classStatic++; var_dump( Foo::$classStatic, Bar::$classStatic );
based on Sin94
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.6 - 7.2.33, 7.3.16 - 7.3.28, 7.4.0 - 7.4.16, 8.0.0 - 8.0.3
int(1) int(2) int(1) int(2) int(2)