Question

    $genreList;      function directorGen($array)     {         foreach($array as $value)         {           $genreList[] = $value;             }     }     //later..     directorGen($title->genres()); 

This code results in a NULL array. If I replace $genreList[] = $value with echo $value everything prints out like expected. Any ideas?

Answer 1

If $genreList is a global variable, there’s your problem: it’s a scope issue. It can easily be fixed with:

$genreList = array();  function directorGen($array) {     global $genreList;     foreach($array as $value) {         $genreList[] = $value;             } } 

Note: while not strictly necessary I also initialized it, which I think is good practice.

If directorGen() is a member function and $genreList is a data member then change to:

function directorGen($array) {     foreach($array as $value) {         $this->genreList[] = $value;             } }