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<?php declare(strict_types=1); function b(string $c) {} $arr = []; try { b($arr['lol']); } catch (\Throwable $e) { var_dump($e); }
Output for git.master, git.master_jit
Warning: Undefined array key "lol" in /in/YnnNn on line 9 object(TypeError)#1 (7) { ["message":protected]=> string(87) "b(): Argument #1 ($c) must be of type string, null given, called in /in/YnnNn on line 9" ["string":"Error":private]=> string(0) "" ["code":protected]=> int(0) ["file":protected]=> string(9) "/in/YnnNn" ["line":protected]=> int(5) ["trace":"Error":private]=> array(1) { [0]=> array(4) { ["file"]=> string(9) "/in/YnnNn" ["line"]=> int(9) ["function"]=> string(1) "b" ["args"]=> array(1) { [0]=> NULL } } } ["previous":"Error":private]=> NULL }

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