CODEWITHSUNDEEP
php
artgento
artgento

Reputation: 33

How does ArrayObject in PHP work?

I'm trying to understand this object but i can't figure out a simple fact. If count method shows public properties and the result is the number of keys in an array that was passed. In the case of an associative array when i try to access a key like a public property is not found. Maybe i misunderstood the interface.

//example
$currentDate = getdate();

//applying print_r() we can see the content
$objectDate = new ArrayObject();

//verifying the public properties- result is 11
$objectDate->count();

//but can't access keys like public properties
$objectDate->hours;

Upvotes: 0

Views: 71

Answers (2)

ax.
ax.

Reputation: 59927

You can access array entries as properties (->) by passing the ArrayObject::ARRAY_AS_PROPS flag to the ArrayObject constructor:

//example
$currentDate = getdate();
print_r($currentDate);

// create ArrayObject from array, make entries accessible as properties (read and write).
$objectDate = new ArrayObject($currentDate, ArrayObject::ARRAY_AS_PROPS);

// verifying the public methods - result is 11
print_r($objectDate->count());
print "\n";

// accessing entries like public properties
print_r($objectDate->hours);

Upvotes: 3

moonwave99
moonwave99

Reputation: 22817

Such class implements ArrayAccess interface, so you can write:

$objectDate['hours']

With brackets notation, but not with arrow [->] one.

Upvotes: 2

Related Questions