note 113369 added to function.array-filter

Here is key-passed array_filter function. <?php function arrayfilter(array $array, callable $callback = null) { if ($callback == null) { $callback = function($key, $val) { return (bool) $val; }; } $return = array(); foreach ($array as $key => $val) { if ($callback($key, $val)) { $return[$key] = $val; } } return $return; } $test_array = array('foo', 'a' => 'the a', 'b' => 'the b', 11 => 1101, '', null, false, 0); $array = arrayfilter($test_array, function($key, $val) { return is_string($key); }); print_r($array); /* Array ( [a] => the a [b] => the b ) */ $array = arrayfilter($test_array); print_r($array); /* Array ( [0] => foo [a] => the a [b] => the b [11] => 1101 ) */ ?> ---- Server IP: 69.147.83.199 Probable Submitter: 78.181.129.63 ---- Manual Page -- http://php.net/manual/en/function.array-filter.php Edit -- https://master.php.net/note/edit/113369 Del: integrated -- https://master.php.net/note/delete/113369/integrated Del: useless -- https://master.php.net/note/delete/113369/useless Del: bad code -- https://master.php.net/note/delete/113369/bad+code Del: spam -- https://master.php.net/note/delete/113369/spam Del: non-english -- https://master.php.net/note/delete/113369/non-english Del: in docs -- https://master.php.net/note/delete/113369/in+docs Del: other reasons-- https://master.php.net/note/delete/113369 Reject -- https://master.php.net/note/reject/113369 Search -- https://master.php.net/manage/user-notes.php