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<?php class A { function count() { static $var = 0; return ++$var; } } class B extends A {} $a = new A; var_dump($a->count()); $b = new B; var_dump($b->count()); $a2 = new A; var_dump($a2->count());
Output for git.master, git.master_jit, rfc.property-hooks
int(1) int(2) int(3)

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