Java-like Collections in PHP

Question

I\'m learning PHP5 (last time I checked PHP was in PHP4 days) and I\'m glad to see that PHP5 OO is more Java-alike than the PHP4 one but there\'s still an issue that makes m

Answer 1

I sometimes use this really simple implementation to give me a rough and ready collection.

Normally the main requirement of a collection is enforcing a group of one type of object, you just have to setup a basic class with a constructor to implement it.

class SomeObjectCollection {

   /**
    * @var SomeObject[]
    */
   private $collection = array();

   /** 
    * @param SomeObject $object1
    * @param SomeObject $_ [optional]
    */
   function __construct(SomeObject $object1 = null, SomeObject $_ = null) 
   {
       foreach (func_get_args() as $index => $arg) {
           if(! $arg instanceof SomeObject) throw new \RuntimeException('All arguments must be of type SomeObject');
           $this->collection[] = $arg;
       }
   }

   /**
    * @return SomeObject[]
    */
   public function getAll()
   {
       return $this->collection;
   }
}