Best Way To Concatenate Strings In PHP With Spaces In Between

Question

I need to concatenate an indeterminate number of strings, and I would like a space in between two adjoining strings. Like so a b c d e f.

Also I do not want

Answer 1

considering that you have all these strings collected into an array, a way to do it could be trough a foreach sentence like:

$res = "";
foreach($strings as $str) {
   $res.= $str." ";
}

if(strlen($res > 0))
    $res = substr($res,-1);

in this way you can have control over the process for future changes.