<?php
function test1() {
    for ($n = 'a'; $n < 'g'; $n++) {
        $$n = 1;
    }
    $$n = $$n[++$n] = "test";
    return $$n;
}

var_dump(test1());

function test2() {
    /* See #71303 for why not using for loop here */
    $n = "a";
    $$n .= $$n[++$n] = "test";
    return $$n;
}

var_dump(test2());
?>