How to create array of objects in php - php

Question

I'm attempting to create an array of objects in php and was curious how I would go about that. Any help would be great, thanks!
Here is the class that will be contained in the array
<?php
class hoteldetails {
private $hotelinfo;
private $price;
public function sethotelinfo($hotelinfo){
$this->hotelinfo=$hotelinfo;
}
public function setprice($price){
$this->price=$price;
}
public function gethotelinfo(){
return $hotelinfo;
}
public function getprice(){
return $price;
}
}
And here is what I am attempting to do-
<?PHP
include 'file.php';
$hotelsdetail=array();
$hotelsdetail[0]=new hoteldetails();
$hotelsdetail[0].sethotelinfo($rs);
$hotelsdetail[0].setprice('150');
?>
The class attempting to create the array doesn't compile but is just a best guess as to how I can do this. Thanks again

Answer 1

What you should probably do is:
$hotelsDetail = array();
$details = new HotelDetails();
$details->setHotelInfo($rs);
$details->setPrice('150');
// assign it to the array here; you don't need the [0] index then
$hotelsDetail[] = $details;
In your specific case, the issue is that you should use ->, not .. The period isn't used in PHP to access attributes or methods of a class:
$hotelsdetail[0] = new hoteldetails();
$hotelsdetail[0]->sethotelinfo($rs);
$hotelsdetail[0]->setprice('150');
Note that I capitalized the class, object, and function names properly. Writing everything in lowercase is not considered good style.
As a side note, why is your price a string? It should be a number, really, if you ever want to do proper calculations with it.

Answer 2

You should append to your array, not assign to index zero.
$hotelsdetail = array();
$hotelsdetail[] = new hoteldetails();
This will append the object to the end of the array.
$hotelsdetail = array();
$hotelsdetail[] = new hoteldetails();
$hotelsdetail[] = new hoteldetails();
$hotelsdetail[] = new hoteldetails();
This would create an array with three objects, appending each one successively.
Additionally, to correctly access an objects properties, you should use the -> operator.
$hotelsdetail[0]->sethotelinfo($rs);
$hotelsdetail[0]->setprice('150');

Answer 3

You can get the array of object by encoding it into json and decoding it with $assoc flag as FALSE in json_decode() function.
See the following example:
$attachment_ids = array();
$attachment_ids[0]['attach_id'] = 'test';
$attachment_ids[1]['attach_id'] = 'test1';
$attachment_ids[2]['attach_id'] = 'test2';
$attachment_ids = json_encode($attachment_ids);
$attachment_ids = json_decode($attachment_ids, FALSE);
print_r($attachment_ids);
It would render an array of objects.
output:
Array
(
[0] => stdClass Object
(
[attach_id] => test
)
[1] => stdClass Object
(
[attach_id] => test1
)
[2] => stdClass Object
(
[attach_id] => test2
)
)