Question: I'm kinda of new in android. How can i send an email automatically without a contact chooser. 
I write a list of e-mails in edittext and an message and then i want to send to every email address. 
How can i do that?

Answer: 
This can never be true:

```
if ($val>= $number && $val < $number)

```

---

I would try:

```
$highest = 0;
foreach ($arr as $val) {
    if($val <= $number){
       if($val >= $highest){
           $highest= $val;
       }
    }
}
return $highest;

```
You can also use this function:

```
function get_less_value($arr, $number) {

    // Always sort the array first
    sort($arr);
    $i = 0;

    $biggest = 0;

    while ($number >= $arr[$i]) {
        $biggest = $arr[$i];
        $i++;
    }

    return $biggest;
}

echo get_less_value($arr, $number);

```

This is the naive solution and may work slow if your array would be very big.
Have a look at search algorithms. e.g: [Binary Search](https://en.wikipedia.org/wiki/Binary_search_algorithm)

Another PDF about the algorithms: <http://epaperpress.com/sortsearch/download/sortsearch.pdf>