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<?php $foo = function () { $cache = null; $closure = function () use (&$cache) { if ($cache === null) { $instance = new StdClass; $instance->param = 0; $cache = $instance; } $cache->param += 1; return $cache; }; return $closure; }; $provider = $foo(); var_dump($provider()); var_dump($provider());
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 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 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
object(stdClass)#3 (1) { ["param"]=> int(1) } object(stdClass)#3 (1) { ["param"]=> int(2) }
preferences:
139.27 ms | 408 KiB | 5 Q