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run code in 300+ PHP versions simultaneously
<?php class A { } class B { } class Cache { protected $store = array(); public function store($object) { $this->store[] = $object; } public function gc() { foreach ($this->store as $object) { debug_zval_dump($object); } } } $cache = new Cache(); $cache->store($a = new A); $cache->store(new B); $cache->gc();
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
object(A)#2 (0) refcount(4){ } object(B)#3 (0) refcount(3){ }
preferences:
174.7 ms | 404 KiB | 197 Q