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run code in 300+ PHP versions simultaneously
<?php interface X { function method(A $a); } interface Y { function method(B $a); } class Z implements X, Y { function method(A $a){} }
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Could not check compatibility between Z::method(A $a) and Y::method(B $a), because class B is not available in /in/kF7m2 on line 9
Process exited with code 255.

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