note 90577 added to function.array-search

Can be useful for searching in a multi-dimensional array: function array_search_in_level($needle, $haystack, $key, &$result, $searchlevel = 0) { while(is_array($haystack) && isset($haystack[key($haystack)])) { if($searchlevel == 0 && key($haystack) == $key && $haystack[$key] == $needle) { $result = $haystack; } elseif($searchlevel > 0) { array_search_in_level($needle, $haystack[key($haystack)], $key, $result, $searchlevel - 1); } next($haystack); } } Examples: 1. 2-dimensional array, search by both key and value $arr1 = array( 1 => array('id' => 1, 'name' => 'Alex', 'gender' => 'male'), ... 12 => array('id' => 12, 'name' => 'John', 'gender' => 'male'), ); array_search_in_level('John', $arr1, 'name', $result, 1); $result is: array( 'id' => int 12 'name' => string 'John' (length=4) 'gender' => string 'male' (length=4) ) 2. 3-dimensional array, search by value only: $arr2 = array( 1 => array('id' => 1, 'name' => 'Alex', 'gender' => 'male'), ... 12 => array('id' => 12, 'name' => 'John', 'gender' => 'male', 'friends' => array('Helen', 'Julia')), ); array_search_in_level('Helen', $arr1, 0, $result, 2); $result is: array( 0 => string 'Helen' (length=5) 1 => string 'Julia' (length=5) ) ---- Server IP: 78.41.104.4 Probable Submitter: 89.251.101.62 ---- Manual Page -- http://www.php.net/manual/en/function.array-search.php Edit -- https://master.php.net/note/edit/90577 Del: integrated -- https://master.php.net/note/delete/90577/integrated Del: useless -- https://master.php.net/note/delete/90577/useless Del: bad code -- https://master.php.net/note/delete/90577/bad+code Del: spam -- https://master.php.net/note/delete/90577/spam Del: non-english -- https://master.php.net/note/delete/90577/non-english Del: in docs -- https://master.php.net/note/delete/90577/in+docs Del: other reasons-- https://master.php.net/note/delete/90577 Reject -- https://master.php.net/note/reject/90577 Search -- https://master.php.net/manage/user-notes.php