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run code in 300+ PHP versions simultaneously
<?php class a { function __invoke() { echo("Invoked\n"); } } class b { private a $a; function doStuff() { $this->a = new a(); ($this->a)(); } } $b = new b(); $b->doStuff();
Output for 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
Invoked

preferences:
59.44 ms | 406 KiB | 5 Q