// This loop loops trough each planet then looks if there is aspect with any other planet that is further away
      // In natal horocopes the sun can make aspects with all planet. But planets that are further away, can't make a
      // aspect with the sun. So the sun can make a aspect with pluto, but pluto can't make a aspect with the sun. This
      // this loops does this in the right order
      for ($i = 0; $i <= 9; $i++)
      {
        for ($j = $i + 1; $j <= 10; $j++)
        {

          $planet_positions = swe_calc_ut($jd, $plnr, 0, $planet_positions, $serr);

      // To find a aspects, we need to know the distance between two planets. Substracting the two different planet
          // positions will give you the remaining distance. Using ABS the value will always be positive.
      // For example lets say the sun is at 91.986084 decimal degrees and Mercury is at 92.223671 this would result
          // in a positive value as −0.237587, which is less then aspect + or - orb. So its a aspect.

          $da = Abs($planet_positions[$i] - $planet_positions[$j]);

      // We use radian degrees to find aspect, distance will not be more then 180 degrees
      if ($da > 180)
          {
            $da = 360 - $da;
          }

      define The orb of a aspect.
      $orb = 5;

          // Q = 1 by default, which means no aspect has been found yet.
          $q = 1;

      // if da is less not bigger then orb, set q=2 mean conjunction
          if ($da <= $orb)
          {
            $q = 2;
          }
          // if da is 60 degrees , set q=3 means sextile aspect
          elseif (($da <= 60 + $orb) And ($da >= 60 - $orb))
          {
            $q = 3;
          }
          // if da is 90 degrees, set q=4 means square aspect
          elseif (($da <= 90 + $orb) And ($da >= 90 - $orb))
          {
            $q = 4;
          }
          // if da is 120 degrees, set q=5 means trine aspect
          elseif (($da <= 120 + $orb) And ($da >= 120 - $orb))
          {
            $q = 5;
          }
          // if da is 180 degrees, set q=6 means opposite aspect
          elseif ($da >= 180 - $orb)
          {
            $q = 6;
          }

      // if $q is more then one, a aspect has been found
          if ($q > 1)
          {
        // What aspect?
            if ($q == 2)
            {
              $aspect = "Conjunction";
            }
            elseif ($q == 3)
            {
              $aspect = "Sextile";
            }
            elseif ($q == 4)
            {
              $aspect = "Square";
            }
        elseif ($q == 5) {
          $aspect = "trine";
        }
        elseif ($q == 6) {
          $aspect = "opposite"
        }
        // Print line of aspect for example sun square moon....
            $aspects[] = $planet_name[$i] . $aspect . $planet_name[$j] // string with aspect
          }
        }
      }