Online PHP editor | output for A90lR

<?php const FIND_BY_KEY = 1<<0; const FIND_BY_VAL = 1<<1; $arr = [ 'plugin-folder/plugin-file.php' => 'one', 'plugin-folder/two' => 'two', 'muplugins/hey' => 'hey', 'vendor/laravel' => 'laravel' ]; function arrayFinder($lookup, $kv) { return function($v, $k) use ($lookup, $kv) { return strpos((($kv === FIND_BY_KEY)?$k:$v), $lookup) === 0; }; } $filtered = array_filter($arr, arrayFinder('plugin-folder', FIND_BY_KEY), ARRAY_FILTER_USE_BOTH); var_dump($filtered); $filtered = array_filter($arr, arrayFinder('one', FIND_BY_VAL), ARRAY_FILTER_USE_BOTH); var_dump($filtered);