PHP string concatenation [duplicate]

Question

Is it possible to concatenate strings, as follows? And if not, what is the alternative of doing so?

while ($personCount < 10) {
    $result += $personCount . "person ";
}

echo $result;

It should appear like 1 person 2 person 3 person, etc.

You can’t use the + sign in concatenation, so what is the alternative?

Answer 1

Just use . for concatenating. And you missed out the $personCount increment!

while ($personCount < 10) {
    $result .= $personCount . ' people';
    $personCount++;
}

echo $result;

Answer 2

One step (IMHO) better

$result .= $personCount . ' people';

Answer 3

This should be faster.

while ($personCount < 10) {
    $result .= "{$personCount} people ";
    $personCount++;
}

echo $result;

Answer 4

while ($personCount < 10) {
    $result .= ($personCount++)." people ";
}

echo $result;