[PHP] Associative Arrays

[VamVan]

Hi,

How to create an associative array of this kind in PHP?

 return array(
    12345 => array(
      'mail' => '[EMAIL PROTECTED]',
      'companyName' => 'Asdf Inc.',
    ),
    54321 => array(
      'mail' => '[EMAIL PROTECTED]',
      'companyName' => 'Asdfu Corp.',
    ),
  );

Thanks