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run code in 300+ PHP versions simultaneously
<?php class CityFilter implements CityEntity { private $id; } interface CityEntity { public $id; public $regionId; public $title; }
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.6
Fatal error: Interfaces may not include member variables in /in/akHZb on line 11
Process exited with code 255.
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175.29 ms | 1395 KiB | 35 Q