I am a beginner in PHP and I am using wordpress.

I am calling a post title inside a form(Gravity Forms) and use this line of code:

```
add_filter('gform_field_value_testtitle', create_function("", '$value = testing_title(); return $value;' ));

```

And what i need to make is a function that allows me to pre populate one of the gravity forms fields with the post title, and i do that like this:

```
function testing_title() {
    global $wp_query;
    while ($postid = $wp_query->post->ID) {
        return $postid;
    }
}

```

This returns the first post id and then it stops. So I have a list of posts but with this only the first post appears, and the id is inserted in the form.

How do I get the rest of them?