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Re: ArrayObject vs array

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Il 24/07/21 12:10, J.O. Aho ha scritto:
> On 24/07/2021 08.26, alex wrote:
>> Il 23/07/21 19:39, Jerry Stuckle ha scritto:
>>> On 7/23/2021 5:16 AM, alex wrote:
>>>> class C implements ArrayAccess, Countable, IteratorAggregate, 
>>>> Serializable {
>>>>
>>>>      private $container = ['a', 'b'];
>>>>
>>>>      public function offsetSet($offset, $value) {
>>>>          if (is_null($offset)) {
>>>>              $this->container[] = $value;
>>>>          } else {
>>>>              $this->container[$offset] = $value;
>>>>          }
>>>>      }
>>>>
>>>>      public function offsetExists($offset) {
>>>>          return isset($this->container[$offset]);
>>>>      }
>>>>
>>>>      public function offsetUnset($offset) {
>>>>          unset($this->container[$offset]);
>>>>      }
>>>>
>>>>      public function offsetGet($offset) {
>>>>          return isset($this->container[$offset]) ? 
>>>> $this->container[$offset] : null;
>>>>      }
>>>>
>>>>      public function count() {
>>>>          return count($this->container);
>>>>      }
>>>>
>>>>      public function getIterator() {
>>>>          return new ArrayIterator($this->container);
>>>>      }
>>>>
>>>>      public function serialize() {
>>>>          return serialize($this->container);
>>>>      }
>>>>
>>>>      public function unserialize($data) {
>>>>          $this->container = unserialize($data);
>>>>      }
>>>>
>>>>      public function getData() {
>>>>          return $this->container;
>>>>      }
>>>>
>>>> }
>>>>
>>>> print_r(
>>>>          (array) new ArrayObject(['a', 'b'])
>>>> );
>>>> print_r(
>>>>          (array) new C
>>>> );
>>>>
>>>> Output:
>>>>
>>>> Array
>>>> (
>>>>      [0] => a
>>>>      [1] => b
>>>> )
>>>> Array
>>>> (
>>>>      [Ccontainer] => Array
>>>>          (
>>>>              [0] => a
>>>>              [1] => b
>>>>          )
>>>>
>>>> )
>>>>
>>>> Because the result is not the same?
>>>
>>> An object is not the same as a basic type.  A basic type holds one or 
>>> more values.  An object can also have methods to operate on those 
>>> values.  The two are not compatible.
>>>
>>
>> Could you tell me what these methods are?
> 
> The object can be of any type, so the whole depends on the class 
> definition.
> 
> for example:
> class myclass {
>      public $array = Array();
>      public function getFirst() {
>          if(sizeof($this->array) == 0)
>          {
>              return null;
>          }
>          return $this->array[1];
>      }
> }
> 
> this has the method getFirst.
> 

???????
So what?

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ArrayObject vs array alex <1j9448a02@lnx159sneakemail.com.invalid> - 2021-07-23 11:16 +0200
  Re: ArrayObject vs array Jerry Stuckle <jstucklex@attglobal.net> - 2021-07-23 13:39 -0400
    Re: ArrayObject vs array alex <1j9448a02@lnx159sneakemail.com.invalid> - 2021-07-24 08:26 +0200
      Re: ArrayObject vs array "J.O. Aho" <user@example.net> - 2021-07-24 12:10 +0200
        Re: ArrayObject vs array alex <1j9448a02@lnx159sneakemail.com.invalid> - 2021-07-24 13:05 +0200
          Re: ArrayObject vs array Jerry Stuckle <jstucklex@attglobal.net> - 2021-07-24 12:56 -0400
            Re: ArrayObject vs array alex <1j9448a02@lnx159sneakemail.com.invalid> - 2021-07-25 11:13 +0200
              Re: ArrayObject vs array "J.O. Aho" <user@example.net> - 2021-07-25 11:48 +0200
                Re: ArrayObject vs array alex <1j9448a02@lnx159sneakemail.com.invalid> - 2021-07-26 10:14 +0200
                Re: ArrayObject vs array "J.O. Aho" <user@example.net> - 2021-07-26 11:11 +0200
                Re: ArrayObject vs array Arno Welzel <usenet@arnowelzel.de> - 2021-07-26 12:16 +0200

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