note 109799 added to function.max

<?php /** * @param array $array * * @return int|null Returns the largest value of the array. Returns NULL if no * integers are found. */ function array_max_recursive(array $array) { $max = NULL; $stack = array($array); do { $current = array_pop($stack ); foreach ($current as $value) { if (is_array($value)) { $stack[] = $value; } elseif (filter_var($value, FILTER_VALIDATE_INT) !== FALSE) { // max(NULL, 0) returns NULL, so cast it $max = (int) max($max, $value); } } } while (!empty($stack)); return $max; } ?> - This function is not actually recursive, but fulfills the requirement that it works on sub-arrays. I do this because PHP is not very good at recursion. I also did it because I enjoy doing things this way. - It returns something of type int, never a string representation of an int. The exception is when you provide an array that does not contain any integers. It will then return NULL. - It ignores non-array, non-int values. ---- Server IP: 69.147.83.197 Probable Submitter: 69.169.143.136 ---- Manual Page -- http://www.php.net/manual/en/function.max.php Edit -- https://master.php.net/note/edit/109799 Del: integrated -- https://master.php.net/note/delete/109799/integrated Del: useless -- https://master.php.net/note/delete/109799/useless Del: bad code -- https://master.php.net/note/delete/109799/bad+code Del: spam -- https://master.php.net/note/delete/109799/spam Del: non-english -- https://master.php.net/note/delete/109799/non-english Del: in docs -- https://master.php.net/note/delete/109799/in+docs Del: other reasons-- https://master.php.net/note/delete/109799 Reject -- https://master.php.net/note/reject/109799 Search -- https://master.php.net/manage/user-notes.php