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run code in 300+ PHP versions simultaneously
<?php interface RangeFinderInterface { public function doStuff(): self; } class RangeFinder implements RangeFinderInterface { public function doStuff(): self { echo 'hello world', "\n"; return $this; } } $rf = new RangeFinder; $rf->doStuff()->doStuff()->doStuff();
Output for 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
hello world hello world hello world
Output for 7.1.25 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33
Fatal error: Declaration of RangeFinder::doStuff(): RangeFinder must be compatible with RangeFinderInterface::doStuff(): RangeFinderInterface in /in/Du4hj on line 7
Process exited with code 255.
preferences:
146.57 ms | 407 KiB | 5 Q