3v4l.org

run code in 300+ PHP versions simultaneously
<?php trait A { private $value = 1; public function getValue() { return $this->value; } public function __set($name, $val) { var_dump($name, $val); } } class B { use A; public function setValue($value) { // Prior to v7.3, "A::__set()" would be triggered here. $this->value = $value; } } $B = new B(); var_dump($B->getValue()); $B->setValue(12); var_dump($B->getValue());
Output for 7.1.25 - 7.1.31, 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
int(1) int(12)
preferences:
142.76 ms | 407 KiB | 5 Q