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<?php interface Foo { public function doStuff(array $a, string $b = null); } class Bar implements Foo { public function doStuff($a, $b = null) { var_dump($a, $b); } } $a = new Bar(); $a->doStuff([1,2,3,4], 'asdsad'); $a->doStuff([5,6,7,8]);
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
array(4) { [0]=> int(1) [1]=> int(2) [2]=> int(3) [3]=> int(4) } string(6) "asdsad" array(4) { [0]=> int(5) [1]=> int(6) [2]=> int(7) [3]=> int(8) } NULL
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 array(4) { [0]=> int(1) [1]=> int(2) [2]=> int(3) [3]=> int(4) } string(6) "asdsad" array(4) { [0]=> int(5) [1]=> int(6) [2]=> int(7) [3]=> int(8) } NULL
Output for 7.1.0 - 7.1.33
Fatal error: Declaration of Bar::doStuff($a, $b = NULL) must be compatible with Foo::doStuff(array $a, ?string $b = NULL) in /in/IIL14 on line 7
Process exited with code 255.
Output for 7.0.0 - 7.0.33
Fatal error: Declaration of Bar::doStuff($a, $b = NULL) must be compatible with Foo::doStuff(array $a, string $b = NULL) in /in/IIL14 on line 7
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Fatal error: Declaration of Bar::doStuff() must be compatible with Foo::doStuff(array $a, string $b = NULL) in /in/IIL14 on line 7
Process exited with code 255.
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