$result_id[][] = "";
$result_total[][] = "";
foreach ($user as $key) {
    $a = 0;
    foreach ($drama as $row) {
        if ($w_average[$key['userid']][$row['id']] > 0) {
            if ($w_average[$key['userid']][$row['id']] < 1) {
                $result_id[$key['userid']][$a] = $row['id'];
                $result_total[$key['userid']][$a] = $w_average[$key['userid']][$row['id']];
                $a  ;
            }
        }
    }
}

i wanna get the positive value of w_average and the nearest value to 1.

the w_average are 0.25 and 0.33 but the output of my source code is 0.25

how to fix it? thanks

CodePudding user response：

are you sure that the value is pass as number, not as string?

$w_average = [0.25, 0.33, 1.21, -0.4];
foreach ($w_average as $row) {
    if($row < 1 && $row > 0 ) {
        echo "W_average = ".$row." -> Ok";
    } else {
        echo "W_average = ".$row." -> NO";
    }
}

Output:
W_average = 0.25 -> Ok
W_average = 0.33 -> Ok
W_average = 1.21 -> NO
W_average = -0.4 -> NO

Example:

$w_average = [0.25, 0.33, 1.21, -0.4];
$near = 0; 
foreach ($w_average as $row) {
   if($row < 1 && $row > $near) {
       $near = $row;
   } 
}
echo $near;

Output: 0.33

CodePudding user response：

You may use abs($number - $nearest) to get the distance of the value from your desire number

function closest(array $numbers, $nearest = 1) {
  $max = PHP_INT_MAX;
  foreach($numbers as $number) {
    $distance = abs($number - $nearest);
    if($distance < $max) {
      $max = $distance;
      $nearest = $number;
    }
  }
  return $nearest;
}

var_dump(closest([0.25, 0.33]));

// Result 0.33