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run code in 300+ PHP versions simultaneously
<?php class X { public $call; public function __construct() { $this->call = function () { echo "x"; }; } public function call() { echo "y"; } } $object = new X; [$object, 'call']();
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
y
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Parse error: syntax error, unexpected '(' in /in/I3Gf8 on line 16
Process exited with code 255.

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