如何根据数组值在图像之间切换

Question

I have locally two images: /images/green_arrow_up.png /images/red_arrow_down.png. In my database I have a record and I fetch a number in this case.

   ["data"]=>
      array(2) {
        [0]=>
        array(2) {
          [0]=>
          array(15) {
            [14]=>
            string(8) "+1.22%"
          }
        }
      }

I fetch the data like this

<div class="stats-item"><?php echo number_format((float)@$data->data[0][0][14], 2, '.', ''); ?>% </div>

Depending on the array from which i fetch the data the result can be +1.22% or -1.22% for example. I want if the result is positive (1.22%) to display the green_arrow_up before the number. And if the result is negative (-1.22%) I want to display the red_arrow_down.

Answer 1

Try this :

   if ( number_format( (float) @$data->data[0][0][14], 2, '.', '' ) > 0 ) {
     echo "<img src='green_arrow.jpg'/>";
   }
   else {
     echo "<img src='red_arrow.jpg'/>";
  }