QUESTION A page as a host for information about other pages

[Bigin]

Probable your foreach() construct is wrapped in a function call:

PHP Code:

your_function() {
    foreach($pagesArray as $key => $value) {
    ...
} 


You'll need to make the $pagesArray available locally:

PHP Code:

your_function() {
    global $pagesArray;
    foreach($pagesArray as $key => $value) {
    ...
} 


But this is really basic knowledge