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<?php const DEFAULT_VALUE = null; function foo(\stdClass $arg = DEFAULT_VALUE) { var_dump($arg); } var_dump((new ReflectionFunction('foo'))->getParameters()[0]->allowsNull()); foo(null);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
bool(false) Fatal error: Uncaught TypeError: foo(): Argument #1 ($arg) must be of type stdClass, null given, called in /in/mUePZ on line 11 and defined in /in/mUePZ:5 Stack trace: #0 /in/mUePZ(11): foo(NULL) #1 {main} thrown in /in/mUePZ on line 5
Process exited with code 255.
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 bool(false) Fatal error: Uncaught TypeError: foo(): Argument #1 ($arg) must be of type stdClass, null given, called in /in/mUePZ on line 11 and defined in /in/mUePZ:5 Stack trace: #0 /in/mUePZ(11): foo(NULL) #1 {main} thrown in /in/mUePZ on line 5
Process exited with code 255.
Output for 5.6.38, 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
bool(false) NULL

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