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<?php class Test { function getStVar() { static $_stVar; $output = ''; if (!isset($_stVar)) { $_stVar = true; $output = '!'; } else { $output = '.'; } return $output; } } class TestExt_1 extends Test { } class TestExt_2 extends Test { } $t1 = new TestExt_1(); $t2 = new TestExt_2(); echo $t1->getStVar(); echo $t1->getStVar(); echo $t2->getStVar(); echo $t2->getStVar();
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
!...
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30
!.!.
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233.41 ms | 405 KiB | 315 Q