php - Laravel 4 Eager Loading "Undefined Property" -

why can't access property in eager loaded senario?

i trying access photo location facilities model. have many:many relationship. when load facility info using

$facilities = facility::with('photos')->get(); 

when try access

foreach($facilities $facility) {     echo $facility->photos->id; } 

i undefined property: illuminate\database\eloquent\collection::$id

if echo $facilities->photos end with.

[{"id":"3", "name":null, "location":"facilities\/facility1.jpg\r", "created_at":"2013-07-18 14:15:19", "deleted_at":null, "updated_at":null, "pivot":{"facility_id":"5","photo_id":"3"}}] 

whats best way access property in array?

with eager loading photos photos collection , in order photo need iterate through photos collection e.g.

foreach($facilities $facility) {   foreach($facility->photos $photo)  {     echo $photo->id;  }  } 

if want first photo can calling first() method on collection

foreach($facilities $facility)  {   $facility->photos->first()->id; }