3v4l.org

run code in 300+ PHP versions simultaneously
<?php class X { var $value; function get() { return null !== $this->value ? $this->value : ($this->value = $this->getLongCalculation()); } function getLongCalculation() { sleep(1); return 5; } } $x = new X; var_dump($x->get()); var_dump($x->get());
Output for git.master, git.master_jit, rfc.property-hooks
int(5) int(5)

This tab shows result from various feature-branches currently under review by the php developers. Contact me to have additional branches featured.

Active branches

Archived branches

Once feature-branches are merged or declined, they are no longer available. Their functionality (when merged) can be viewed from the main output page


preferences:
43.74 ms | 401 KiB | 8 Q