3v4l.org

run code in 300+ PHP versions simultaneously
<?php class e { public function foo() { $file = fopen('php://input', 'r'); $this->$file = 'foo'; return $this; } } var_dump((new e)->foo());
Output for 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Deprecated: Creation of dynamic property e::$Resource id #7 is deprecated in /in/VD7t1 on line 6 object(e)#1 (1) { ["Resource id #7"]=> string(3) "foo" }
Output for 5.6.0 - 5.6.26, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.6 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28
object(e)#1 (1) { ["Resource id #7"]=> string(3) "foo" }
preferences:
187.03 ms | 403 KiB | 185 Q