Bu işe yaramazsa neden biliyor mu

function my_current($array) {
    return current($array);
}

$array = array(1,3,5,7,13);

while($i = my_current($array)) {
    $content .= $i.',';
    next($array);
}

Henüz bu yapar

$array = array(1,3,5,7,13);

while($i = current($array)) {
    $content .= $i.',';
    next($array);
}

or how to make the top one work? It's a little question but it would be a big help! Thanks Richard