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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 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Warning: Undefined array key "lol" in /in/YnnNn on line 9 object(TypeError)#1 (7) { ["message":protected]=> string(87) "b(): Argument #1 ($c) must be of type string, null given, called in /in/YnnNn on line 9" ["string":"Error":private]=> string(0) "" ["code":protected]=> int(0) ["file":protected]=> string(9) "/in/YnnNn" ["line":protected]=> int(5) ["trace":"Error":private]=> array(1) { [0]=> array(4) { ["file"]=> string(9) "/in/YnnNn" ["line"]=> int(9) ["function"]=> string(1) "b" ["args"]=> array(1) { [0]=> NULL } } } ["previous":"Error":private]=> NULL }
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Warning: Undefined array key "lol" in /in/YnnNn on line 9 object(TypeError)#1 (7) { ["message":protected]=> string(87) "b(): Argument #1 ($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 }
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Notice: Undefined index: lol in /in/YnnNn on line 9 object(TypeError)#1 (7) { ["message":protected]=> string(94) "Argument 1 passed to b() must be of the 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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