3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { const METHOD = 'test'; public function test() { echo 'test'; } public function __call($a, $b) { echo '__call'; } public function start() { $this->{self::METHOD}(); } } $obj = new A(); $obj->start();
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.30, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
test
preferences:
150.35 ms | 408 KiB | 5 Q