PHP: Implode Comma Separated in min() function

Question

I'm trying to implement the min() function in my PHP code. The min value should be retried like this:

$ar=array($data[Price]);
echo min($ar);

The problem is that when I echo out $data[Price] I get my prices without commas nor spaces, so it becomes something like this:

$ar=array($data[Price]);
echo min(373945);  

But it should be:

echo min(37, 39, 45);

to get 37.

Is there any way to get comma separated values with implode?

My var_dump result of $data[Price]:

NULL 37.00NULL 39.00NULL 45.00

Answer 1

Here's a short sample:

$array = array('lastname', 'email', 'phone');
foreach($array as &$value){
   $value = "'$value'";
}
$comma_separated = implode(",", $array);

Answer 2

I'm not quite sure what $data[Price] contains. If this is the value you get using var_dump, as you say:

NULL 37.00NULL 39.00NULL 45.00

You could do this:

$price = explode('NULL ', $data[Price]);
echo min($price);