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<?php class Foo { public function foo(int $arg) { return $arg; } } $foo = new Foo(); var_dump($foo->foo(''));
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
Fatal error: Uncaught TypeError: Foo::foo(): Argument #1 ($arg) must be of type int, string given, called in /in/kK5YN on line 11 and defined in /in/kK5YN:5 Stack trace: #0 /in/kK5YN(11): Foo->foo('') #1 {main} thrown in /in/kK5YN on line 5
Process exited with code 255.
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Fatal error: Uncaught TypeError: Foo::foo(): Argument #1 ($arg) must be of type int, string given, called in /in/kK5YN on line 11 and defined in /in/kK5YN:5 Stack trace: #0 /in/kK5YN(11): Foo->foo('') #1 {main} thrown in /in/kK5YN on line 5
Process exited with code 255.
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; Foo has a deprecated constructor in /in/kK5YN on line 3 Fatal error: Uncaught ArgumentCountError: Too few arguments to function Foo::foo(), 0 passed in /in/kK5YN on line 10 and exactly 1 expected in /in/kK5YN:5 Stack trace: #0 /in/kK5YN(10): Foo->foo() #1 {main} thrown in /in/kK5YN on line 5
Process exited with code 255.
Output for 7.3.32 - 7.3.33
Fatal error: Uncaught ArgumentCountError: Too few arguments to function Foo::foo(), 0 passed in /in/kK5YN on line 10 and exactly 1 expected in /in/kK5YN:5 Stack trace: #0 /in/kK5YN(10): Foo->foo() #1 {main} thrown in /in/kK5YN on line 5
Process exited with code 255.
Output for 7.0.0 - 7.0.33
Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; Foo has a deprecated constructor in /in/kK5YN on line 3 Fatal error: Uncaught TypeError: Argument 1 passed to Foo::foo() must be of the type integer, none given, called in /in/kK5YN on line 10 and defined in /in/kK5YN:5 Stack trace: #0 /in/kK5YN(10): Foo->foo() #1 {main} thrown in /in/kK5YN on line 5
Process exited with code 255.
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.38
Catchable fatal error: Argument 1 passed to Foo::foo() must be an instance of int, none given, called in /in/kK5YN on line 10 and defined in /in/kK5YN on line 5
Process exited with code 255.

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