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<?php var_dump(filter_var( ['loadPlugins' => 'test'], FILTER_CALLBACK, [ 'options' => function ($value) { if (is_array($value) === true) { return $value; } else { return null; } }, 'flags' => FILTER_NULL_ON_FAILURE ] ) );
Output for 8.1.25 - 8.1.31, 8.2.12 - 8.2.26, 8.3.0 - 8.3.14, 8.4.1
NULL
Output for 8.1.0 - 8.1.24, 8.2.0 - 8.2.11
array(1) { ["loadPlugins"]=> NULL }
preferences:
49.03 ms | 407 KiB | 5 Q