PHP Appending same value to two variables

Question

I need to append a value to two variables.

$a = \"String A\";
$b = \"String B\";

...

$a .= \" more\";
$b .= \" more\";
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Answer 1

Not really.

$a .= $b .= " more";

Is equivalent to:

$b .= " more";
$a .= $b;

The best way is to write:

$a .= " more";
$b .= " more";

---

Or (if you have a lot of them) use array with some functions:

#1 - array_map approach

function addMore(&$vars) {
    $var .= " more";
}
$array = [$a, $b];
$array = array_map('addMore',$array);

#2 - classic approach:

$array = array($a, $b);
foreach ($array_before as &$var) {
    $var .= " more";
}