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<?php class Test1 { public static function testStaticMethod() { static $num = 0; $num++; echo __METHOD__ . " " . $num . PHP_EOL; } } class Test2 extends Test1 {} class Test3 extends Test1 {} Test1::testStaticMethod(); Test2::testStaticMethod(); Test3::testStaticMethod(); Test1::testStaticMethod(); Test2::testStaticMethod(); Test3::testStaticMethod();
Output for git.master, git.master_jit, rfc.property-hooks
Test1::testStaticMethod 1 Test1::testStaticMethod 2 Test1::testStaticMethod 3 Test1::testStaticMethod 4 Test1::testStaticMethod 5 Test1::testStaticMethod 6

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