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run code in 300+ PHP versions simultaneously
<?php class Request { public static function process(Request $foo) { // do something with our Request } } class BadgerRequest extends Request { public static function process(BadgerRequest $foo) { if (!($foo instanceof BadgerRequest)) { throw new \InvalidArgumentException('Expecting BadgerRequest'); } // do something with our BadgerRequest } }
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Fatal error: Declaration of BadgerRequest::process(BadgerRequest $foo) must be compatible with Request::process(Request $foo) in /in/V8t00 on line 9
Process exited with code 255.
Output for 7.4.0 - 7.4.33
Warning: Declaration of BadgerRequest::process(BadgerRequest $foo) should be compatible with Request::process(Request $foo) in /in/V8t00 on line 9
Output for 7.0.0 - 7.0.31, 7.1.0 - 7.1.21, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33
Warning: Declaration of BadgerRequest::process(BadgerRequest $foo) should be compatible with Request::process(Request $foo) in /in/V8t00 on line 15

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