How to combine strings inside foreach into single string PHP

Question

I have code like this

$word = \'foo\';
$char_buff = str_split($word);

foreach ($char_buff as $chars){
    echo var_dump($chars);
}

The out

Answer 1

I'm going to assume that you have a good reason for splitting it up, only to put it back together again:

$word = 'foo';
$result = "";
$char_buff = str_split($word);

foreach ($char_buff as $char){
    $result .= $char;
}

echo var_dump($result);

Which outputs the following:

string(3) "foo"

Answer 2

Kind of strange to split a string, and then glue it together again, but here goes:

$word='foo'
$char_buff = str_split($word);

// this is what is missing, you have to define a variable first
$newword = "";

foreach ($char_buff as $chars){
     $newword .= $chars;
}

echo var_dump($newword);