3v4l.org

run code in 300+ PHP versions simultaneously
<?php $anon = new class extends Exception { public function __invoke($a, $b) { echo $a.$b.PHP_EOL; } }; $anon('Hello', 'World');
Output for 7.0.0 - 7.0.31, 7.1.0 - 7.1.23, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
HelloWorld
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.38
Parse error: syntax error, unexpected 'class' (T_CLASS) in /in/EcdDa on line 3
Process exited with code 255.

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207.16 ms | 401 KiB | 282 Q