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<?php abstract class Foo { abstract protected static function things(); protected $t; protected function __construct($t) { $this->t = $t; } public function getT() { return $this->t; } public static function all() { return array_map(function($t) { return new static($t); }, static::things()); } } class Bar extends Foo { protected static function things() { return [10, 20, 30]; } } $bars = Bar::all(); foreach ($bars as $bar) { echo $bar->getT()."\n"; }
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 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
10 20 30
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 10 20 30
Output for 5.4.30 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.21
Strict Standards: Static function Foo::things() should not be abstract in /in/LoBCV on line 4 10 20 30
Output for 5.4.2 - 5.4.29
Strict Standards: Static function Foo::things() should not be abstract in /in/LoBCV on line 4 Fatal error: Cannot instantiate abstract class Foo in /in/LoBCV on line 15
Process exited with code 255.
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