是否可以使用$ i在for循环中定义PHP变量？

Question

I am looking to do something like the following:

for ($i=0; $i<=$number_of_bundles; $i++) {

    $rug_size . $i = $_POST['Size' . $i];

}

Unfortunately this does not work since I get "undefined index" and when I try echoeing, for example, $rug_size1 is undefined.

How can something like this be done?

Answer 1

Assuming you initialize $rug_size as an array():

$rug_size[$i] = $_POST['Size' . $i];

If you really want to use different variable names (hopefully not):

$vn = 'rug_size' . $i;
$$vn = $_POST['Size' . $i];