3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { public function test() { static $v = []; $v[] = 'x'; } } $r = new \ReflectionMethod(A::class, 'test'); print_r($r->getStaticVariables()); $a = new A(); $a->test(); print_r($r->getStaticVariables()); $a->test(); print_r($r->getStaticVariables()); $r->getStaticVariables()['v'][0] = ['replace_first_x']; print_r($r->getStaticVariables()); $a->test(); print_r($r->getStaticVariables());
Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.26, 8.4.1 - 8.4.13
Array ( [v] => Array ( ) ) Array ( [v] => Array ( [0] => x ) ) Array ( [v] => Array ( [0] => x [1] => x ) ) Array ( [v] => Array ( [0] => x [1] => x ) ) Array ( [v] => Array ( [0] => x [1] => x [2] => x ) )
preferences:
158.5 ms | 408 KiB | 5 Q