Get the minimum value from an array that contains null values

Question

How to get the minimum value from an array containing some null values ​​in PHP. I have such an array

array(10,20,null,60) 

Since this array contains null, so the php min function gives 0 as the minimum value, but I need, for example, a minimum of 10. Can anyone help me?

Answer 1

Use array_diff() to exclude null values, and after that use min() :

 $r = array_diff(array(10, 20, null, 60), array(null)); min($r); 

Answer 2

Use array_filter() as a wrapper with strlen as a callback.

 echo min(array_filter($arr,'strlen')); 

Demonstration

Answer 3

Try

  function min($array){ $min = 1000;//max value you expect for($i=0; $i<sizeof($array); $i++){ if($array[$i] < $min && $array[$i] != null) $min = $array[$i]; } return $min; }