complex multidimentional associative array process with foreach - php

Question

I've had to ask this one again, sorry, but I'm having a problem trying to process this array. I have tried several different ways but none where right, here's the array:
Array (
[search] => Array (
[response] => Array (
[errors] =>
[number_of_hotels] => 1 of 1
)
[lr_rates] => Array (
[hotel] => Array (
[hotel_ref] => 3116
[hotel_currency] => [U] => USD
[hotel_rooms] => Array (
[room] => Array (
[ref] => 6382
[type] => 1
[type_description] => Standard
[sleeps] => 8
[rooms_available] =>
[adults] => 8
[children] =>
[breakfast] => false
[dinner] => false
[description] =>
[alternate_description] =>
[rack_rate] => 82.01
[date] => 19/08/201220/08/201221/08/2012
[numeric_hotelcurrencyprice] => FullFullFull
[formatted_date] => 19 August 201220 August 201221 August 2012
[price] => FullFullFull
[hotelcurrencyprice] => FullFullFull
[numeric_price] => FullFullFull
[requested_currency] => GBPGBPGBP
[numeric_hotelcurrencyprice] => FullFullFull
[available_online] => false
[minimum_nights] => 1
[bed_type] =>
[cancellation_policy] =>
[cancellation_days] =>
[cancellation_hours] =>
[room_terms] =>
)
[room] => Array (
[ref] => 6382
[type] => 1
[type_description] => Standard
[sleeps] => 8
[rooms_available] =>
[adults] => 8
[children] =>
[breakfast] => false
[dinner] => false
[description] =>
[alternate_description] =>
[rack_rate] => 82.01
[date] => 19/08/201220/08/201221/08/2012
[numeric_hotelcurrencyprice] => FullFullFull
[formatted_date] => 19 August 201220 August 201221 August 2012
[price] => FullFullFull
[hotelcurrencyprice] => FullFullFull
[numeric_price] => FullFullFull
[requested_currency] => GBPGBPGBP
[numeric_hotelcurrencyprice] => FullFullFull
[available_online] => false
[minimum_nights] => 1
[bed_type] =>
[cancellation_policy] =>
[cancellation_days] =>
[cancellation_hours] =>
[room_terms] =>
)
)
[cancellation_type] => First Night Stay Chargeable
[cancellation_policy] => 2 Days Prior to Arrival
[CityTax] => Array (
[TypeName] =>
[Value] =>
[OptedIn] =>
[IsCityTaxArea] =>
)
)
)
)
)
Ok, I need to traverse the array and create a loop, so for every instance of ROOM it will repeat the process. Then i need to extract the data from room array and use it to populate rows in MySQL for each instance of room.
This is the code I have so far which prints the names and values in the room array. However, it only gets one of the room arrays. What can I do to read all of the rooms? I am also thinking this is too many for-each but don't seem to be able to traverse down ['']['']['']...
or by just using the associative name.
foreach($arr['search'] as $lr_rates) {
foreach($lr_rates['hotel'] as $hotel) {
foreach($hotel['room'] as $field => $value){
print $field;print $value;
}
}
}
It might also be worth mentioning the values in these arrays are always fluctuating.

Answer 1

I think you can really simplify this quote a bit. If you know that this will always be the structure then you can jump right down into the hotels and then into the rooms.
foreach($arr['search']['lr_rates']['hotel'] as $hotel) {
// You can access all of the keys in the hotel array here
foreach($hotel['hotel_rooms'] as $room) {
// Do stuff with the room array
}
}
I would recommend either building your insert script on the fly and calling the database just once for the write, or if you are updating then using a transaction. As the number of rooms gets larger you will slow your script down with a bunch of writes to disk.

Answer 2

the formatting of your data's output is very bad and unreadable. I cannot really identify what you are trying to do.
possibility: the inner array [hotel_rooms] => Array () uses the key room multiple times. as array keys are unique, you overwrite the data at the index room. this is why you only get one room.
possibility: there are rooms inside a room -> use a recursive function to iterate over all rooms like this:
function handleRoom(array $room) {
// do something with $room
if (array_key_exists('room', $room)) {
handleRoom($room['room']);
}
}
$room = array(
'some' => 'room',
'data' => 'and another',
'room' => array(
'is' => 'inside',
'of the' => 'main room',
),
);
handleRoom($room);