Question

How to find an array element that are divisible by all array elements in PHP

Answer 1

function find_element_divisible_by_all_elements($arr) { 
    $len = sizeof($arr);
    for ($i = 0; $i < $len; $i++) { 
        for ($j = 0; $j < $len; $j++) {
            if ($arr[$j] % $arr[$i]) { 
                break; 
            }
        }
        if ($j == $len) {
            return $arr[$i]; 
        }
    } 
    return -1; 
} 
 
$arr = array(18, 30, 12, 3, 33, 27, 45); 
 
echo find_element_divisible_by_all_elements($arr);
 

  
/*
run: 
 
3
 
*/

 

70+ SQL courses for beginners and professionals