Changing value inside foreach loop doesn't change value in the array being iterated over

Question

Why does this yield this:

foreach( $store as $key => $value){
$value = $value.\".txt.gz\";
}

unset($value);

print_r ($store);

Array
(
[1] => 101Phon         


        

Answer 1

How about array map:

$func = function($value) { return $value . ".txt.gz"; };
print_r(array_map($func, $store));